diff --git a/android/navi-common/src/main/java/com/navi/common/firebaseremoteconfig/FirebaseRemoteConfigHelper.kt b/android/navi-common/src/main/java/com/navi/common/firebaseremoteconfig/FirebaseRemoteConfigHelper.kt
index e88dfe4a76..c205ce2310 100644
--- a/android/navi-common/src/main/java/com/navi/common/firebaseremoteconfig/FirebaseRemoteConfigHelper.kt
+++ b/android/navi-common/src/main/java/com/navi/common/firebaseremoteconfig/FirebaseRemoteConfigHelper.kt
@@ -174,6 +174,8 @@ object FirebaseRemoteConfigHelper {
         "NAVI_PMT_TRANSACTION_STORE_EXPIRY_TIME_MILLIS"
     const val NAVI_PMT_ONE_CLICK_CHECKOUT_API_TIMEOUT_MILLIS =
         "NAVI_PMT_ONE_CLICK_CHECKOUT_API_TIMEOUT_MILLIS"
+    const val ENABLE_NAVI_PAYMENT_KILL_SWITCH_MECHANISM =
+        "ENABLE_NAVI_PAYMENT_KILL_SWITCH_MECHANISM"
 
     // BBPS
     const val NAVI_BBPS_REWARDS_NUDGE_CACHE_TTL_IN_MILLIS =
diff --git a/android/navi-payment/src/main/java/com/navi/payment/nativepayment/NaviPaymentAnalytics.kt b/android/navi-payment/src/main/java/com/navi/payment/nativepayment/NaviPaymentAnalytics.kt
index f311276c64..742adfdeba 100644
--- a/android/navi-payment/src/main/java/com/navi/payment/nativepayment/NaviPaymentAnalytics.kt
+++ b/android/navi-payment/src/main/java/com/navi/payment/nativepayment/NaviPaymentAnalytics.kt
@@ -23,6 +23,7 @@ import com.navi.payment.nativepayment.model.RewardsInfoV2
 import com.navi.payment.nativepayment.model.WebPaymentAction
 import com.navi.payment.nativepayment.model.transactionStatusRequest.TransactionStatusRequest
 import com.navi.payment.nativepayment.presentation.reducer.ImageSource
+import com.navi.payment.nativepayment.utils.NaviPaymentErrorConfig
 import com.navi.payment.nativepayment.viewmodel.ScanCardResult
 import com.navi.payment.paymentscreen.model.ErrorReason
 import com.navi.payment.utils.putIfNotNullAndNotEmpty
@@ -180,6 +181,32 @@ class NaviPaymentAnalytics private constructor() {
                 eventValues = eventAttributes,
             )
         }
+
+        fun onErrorOccurredInGetQuerySnapshot(exception: Exception) {
+            NaviTrackEvent.trackEventOnClickStream(
+                "NaviPmt_UptimePoller_ErrorOccurredInGetQuerySnapshot",
+                mapOf(
+                    "exception" to exception.toString(),
+                    "exceptionMessage" to exception.message.toString(),
+                ),
+            )
+        }
+
+        fun onErrorOccurredInProcessingQuerySnapshot(exception: Exception) {
+            NaviTrackEvent.trackEventOnClickStream(
+                "NaviPmt_UptimePoller_ErrorOccurredInProcessingQuerySnapshot",
+                mapOf(
+                    "exception" to exception.toString(),
+                    "exceptionMessage" to exception.message.toString(),
+                ),
+            )
+        }
+
+        fun onPaymentsUptimePollerSyncSuccess() {
+            NaviTrackEvent.trackEventOnClickStream(
+                "NaviPmt_UptimePoller_PaymentsUptimePollerSyncSuccess"
+            )
+        }
     }
 
     inner class NPSMainScreen {
@@ -1503,6 +1530,16 @@ class NaviPaymentAnalytics private constructor() {
             )
         }
 
+        fun onBottomSheetCloseClicked(
+            bottomSheetState: String,
+            error: NaviPaymentErrorConfig? = null,
+        ) {
+            NaviTrackEvent.trackEvent(
+                "NaviPMT_OneClickCheckoutScreen_BottomSheetCloseClicked",
+                mapOf("bottom_sheet_state" to bottomSheetState, "error" to error.toString()),
+            )
+        }
+
         fun onRedirectingBottomSheetClosed(selectedBankAccountId: String) {
             NaviTrackEvent.trackEvent(
                 "NaviPMT_OneClickCheckoutScreen_RedirectingBottomSheetClosed",
diff --git a/android/navi-payment/src/main/java/com/navi/payment/nativepayment/common/usecase/PaymentsUptimePollerUseCase.kt b/android/navi-payment/src/main/java/com/navi/payment/nativepayment/common/usecase/PaymentsUptimePollerUseCase.kt
new file mode 100644
index 0000000000..c69929f9e4
--- /dev/null
+++ b/android/navi-payment/src/main/java/com/navi/payment/nativepayment/common/usecase/PaymentsUptimePollerUseCase.kt
@@ -0,0 +1,78 @@
+/*
+ *
+ *  * Copyright © 2025 by Navi Technologies Limited
+ *  * All rights reserved. Strictly confidential
+ *
+ */
+
+package com.navi.payment.nativepayment.common.usecase
+
+import com.google.firebase.firestore.QuerySnapshot
+import com.navi.base.utils.FirestoreDataProvider
+import com.navi.common.utils.NaviApiPoller
+import com.navi.pay.utils.parallelMap
+import com.navi.payment.nativepayment.NaviPaymentAnalytics
+import com.navi.payment.nativepayment.db.model.toPaymentsUptimeEntity
+import com.navi.payment.nativepayment.repository.PaymentsUptimeRepository
+import com.navi.payment.utils.Constants.FIRESTORE_PAYMENTS_UPTIME_COLLECTION_PATH
+import javax.inject.Inject
+import javax.inject.Singleton
+import kotlin.time.Duration.Companion.minutes
+
+@Singleton
+class PaymentsUptimePollerUseCase
+@Inject
+constructor(
+    private val firestoreDataProvider: FirestoreDataProvider,
+    private val paymentsUptimeRepository: PaymentsUptimeRepository,
+) {
+    private val PAYMENTS_UPTIME_POLLING_INTERVAL = 5.minutes
+    private val paymentsUptimePoller by lazy {
+        NaviApiPoller(repeatInterval = PAYMENTS_UPTIME_POLLING_INTERVAL)
+    }
+    private val naviPaymentAnalytics = NaviPaymentAnalytics.INSTANCE.CommonAnalytics()
+
+    suspend fun executePollerForPaymentsUptime() {
+        paymentsUptimePoller.stopPolling()
+        paymentsUptimePoller
+            .startPolling {
+                try {
+                    firestoreDataProvider.getQuerySnapShotForCollectionPath(
+                        collectionPath = FIRESTORE_PAYMENTS_UPTIME_COLLECTION_PATH
+                    )
+                } catch (exception: Exception) {
+                    naviPaymentAnalytics.onErrorOccurredInGetQuerySnapshot(exception = exception)
+                    paymentsUptimePoller.stopPolling()
+                }
+            }
+            .collect {
+                try {
+                    val paymentsUptimeQuerySnapShot = it as? QuerySnapshot?
+                    processQuerySnapShotForPaymentsUptime(
+                        paymentsUptimeQuerySnapShot = paymentsUptimeQuerySnapShot
+                    )
+                    naviPaymentAnalytics.onPaymentsUptimePollerSyncSuccess()
+                } catch (exception: Exception) {
+                    naviPaymentAnalytics.onErrorOccurredInProcessingQuerySnapshot(
+                        exception = exception
+                    )
+                    paymentsUptimePoller.stopPolling()
+                }
+            }
+    }
+
+    private suspend fun processQuerySnapShotForPaymentsUptime(
+        paymentsUptimeQuerySnapShot: QuerySnapshot?
+    ) {
+        paymentsUptimeQuerySnapShot?.let { querySnapShot ->
+            val paymentsUptimeEntityList =
+                querySnapShot.documents.parallelMap { it.toPaymentsUptimeEntity() }
+
+            if (paymentsUptimeEntityList.isNotEmpty()) {
+                paymentsUptimeRepository.deleteAllExistingDataAndInsertAll(
+                    uptimeEntityList = paymentsUptimeEntityList
+                )
+            }
+        }
+    }
+}
diff --git a/android/navi-payment/src/main/java/com/navi/payment/nativepayment/components/PaymentCheckoutFooter.kt b/android/navi-payment/src/main/java/com/navi/payment/nativepayment/components/PaymentCheckoutFooter.kt
index d70e8e8acd..a220484ca5 100644
--- a/android/navi-payment/src/main/java/com/navi/payment/nativepayment/components/PaymentCheckoutFooter.kt
+++ b/android/navi-payment/src/main/java/com/navi/payment/nativepayment/components/PaymentCheckoutFooter.kt
@@ -69,6 +69,7 @@ import com.navi.pay.R
 import com.navi.pay.common.arc.ui.ArcNudgeBottomSheetContent
 import com.navi.pay.common.model.view.CheckBalanceState
 import com.navi.pay.common.theme.color.NaviPayColor
+import com.navi.pay.common.ui.BottomSheetContentWithVerticalPrimarySecondaryButton
 import com.navi.pay.common.ui.ImageWithCircularBackground
 import com.navi.pay.common.ui.LoaderRoundedButton
 import com.navi.pay.common.ui.NaviPayModalBottomSheet
@@ -260,6 +261,39 @@ fun PaymentCheckoutFooter(
                 is OneClickCheckoutFooterBottomSheetUiState.RedirectingBottomSheet -> {
                     RedirectingBottomSheetContent(title = bottomSheetType.titleText)
                 }
+                is OneClickCheckoutFooterBottomSheetUiState.Error -> {
+                    BottomSheetContentWithVerticalPrimarySecondaryButton(
+                        iconId = bottomSheetType.errorConfig.iconResId,
+                        headerText = bottomSheetType.errorConfig.title,
+                        descriptionText = bottomSheetType.errorConfig.description,
+                        primaryButtonText =
+                            bottomSheetType.errorConfig.firstPrimaryButtonConfig.text,
+                        secondaryButtonText =
+                            bottomSheetType.errorConfig.firstSecondaryButtonConfig?.text,
+                        onPrimaryButtonClicked = {
+                            coroutineScope
+                                .launch { sheetState.hide() }
+                                .invokeOnCompletion {
+                                    naviCheckoutViewModel.onBottomSheetCloseClicked()
+                                }
+                        },
+                        onSecondaryButtonClicked = {
+                            coroutineScope
+                                .launch { sheetState.hide() }
+                                .invokeOnCompletion {
+                                    naviCheckoutViewModel.onBottomSheetCloseClicked()
+                                }
+                        },
+                        onDismissClicked = {
+                            coroutineScope
+                                .launch { sheetState.hide() }
+                                .invokeOnCompletion {
+                                    naviCheckoutViewModel.onBottomSheetCloseClicked()
+                                }
+                        },
+                        shouldShowCloseIcon = bottomSheetType.errorConfig.showDismissIcon,
+                    )
+                }
                 else -> {}
             }
         }
diff --git a/android/navi-payment/src/main/java/com/navi/payment/nativepayment/db/NaviPaymentAppDatabase.kt b/android/navi-payment/src/main/java/com/navi/payment/nativepayment/db/NaviPaymentAppDatabase.kt
index b484520e22..8647a6f705 100644
--- a/android/navi-payment/src/main/java/com/navi/payment/nativepayment/db/NaviPaymentAppDatabase.kt
+++ b/android/navi-payment/src/main/java/com/navi/payment/nativepayment/db/NaviPaymentAppDatabase.kt
@@ -14,28 +14,35 @@ import androidx.room.migration.Migration
 import androidx.sqlite.db.SupportSQLiteDatabase
 import com.navi.common.utils.Constants.DEFAULT
 import com.navi.payment.nativepayment.db.converter.BanksEntityConverter
+import com.navi.payment.nativepayment.db.converter.PaymentsUptimeStatusConverter
 import com.navi.payment.nativepayment.db.dao.BankListDao
+import com.navi.payment.nativepayment.db.dao.PaymentsUptimeDao
 import com.navi.payment.nativepayment.db.dao.TransactionStatusRequestDao
 import com.navi.payment.nativepayment.db.model.BankListEntity
+import com.navi.payment.nativepayment.db.model.PaymentsUptimeEntity
 import com.navi.payment.nativepayment.db.model.TransactionStatusRequestEntity
 import com.navi.payment.nativepayment.model.transactionStatusRequest.TransactionStatus
 
 @Database(
-    entities = [TransactionStatusRequestEntity::class, BankListEntity::class],
-    version = 3,
+    entities =
+        [TransactionStatusRequestEntity::class, BankListEntity::class, PaymentsUptimeEntity::class],
+    version = 4,
     exportSchema = false,
 )
-@TypeConverters(BanksEntityConverter::class)
+@TypeConverters(BanksEntityConverter::class, PaymentsUptimeStatusConverter::class)
 abstract class NaviPaymentAppDatabase : RoomDatabase() {
 
     abstract fun transactionStatusRequestDao(): TransactionStatusRequestDao
 
     abstract fun bankListDao(): BankListDao
 
+    abstract fun paymentUptimeDao(): PaymentsUptimeDao
+
     companion object {
         const val NAVI_PAYMENT_DATABASE_NAME = "navi-payment.db"
         const val TRANSACTION_STATUS_REQUEST_TABLE = "transaction_status_request"
         const val BANKS_TABLE = "banks"
+        const val UPTIME_STATUS_TABLE = "uptime_status"
     }
 }
 
@@ -105,3 +112,16 @@ val NAVI_PAYMENT_APP_DATABASE_MIGRATION_2_3 =
             }
         }
     }
+
+val NAVI_PAYMENT_APP_DATABASE_MIGRATION_3_4 =
+    object : Migration(3, 4) {
+        override fun migrate(db: SupportSQLiteDatabase) {
+            db.execSQL(
+                "CREATE TABLE IF NOT EXISTS ${NaviPaymentAppDatabase.UPTIME_STATUS_TABLE} (" +
+                    "`vertical` TEXT PRIMARY KEY NOT NULL, " +
+                    "`downtimeTitle` TEXT, " +
+                    "`downtimeDescription` TEXT, " +
+                    "`status` TEXT NOT NULL, "
+            )
+        }
+    }
diff --git a/android/navi-payment/src/main/java/com/navi/payment/nativepayment/db/cleaner/NaviPaymentModuleTableCleaner.kt b/android/navi-payment/src/main/java/com/navi/payment/nativepayment/db/cleaner/NaviPaymentModuleTableCleaner.kt
index bd8618a899..57fbfc957a 100644
--- a/android/navi-payment/src/main/java/com/navi/payment/nativepayment/db/cleaner/NaviPaymentModuleTableCleaner.kt
+++ b/android/navi-payment/src/main/java/com/navi/payment/nativepayment/db/cleaner/NaviPaymentModuleTableCleaner.kt
@@ -23,6 +23,9 @@ constructor(private val naviPaymentAppDatabase: NaviPaymentAppDatabase) : NaviMo
             NaviPaymentAppDatabase.BANKS_TABLE -> {
                 runWithCatching { naviPaymentAppDatabase.bankListDao().deleteAll() }
             }
+            NaviPaymentAppDatabase.UPTIME_STATUS_TABLE -> {
+                runWithCatching { naviPaymentAppDatabase.paymentUptimeDao().deleteAll() }
+            }
         }
     }
 
diff --git a/android/navi-payment/src/main/java/com/navi/payment/nativepayment/db/converter/PaymentsUptimeStatusConverter.kt b/android/navi-payment/src/main/java/com/navi/payment/nativepayment/db/converter/PaymentsUptimeStatusConverter.kt
new file mode 100644
index 0000000000..c61ece2f3f
--- /dev/null
+++ b/android/navi-payment/src/main/java/com/navi/payment/nativepayment/db/converter/PaymentsUptimeStatusConverter.kt
@@ -0,0 +1,24 @@
+/*
+ *
+ *  * Copyright © 2025 by Navi Technologies Limited
+ *  * All rights reserved. Strictly confidential
+ *
+ */
+
+package com.navi.payment.nativepayment.db.converter
+
+import androidx.room.TypeConverter
+import com.navi.payment.nativepayment.db.model.PaymentsUptimeStatus
+
+class PaymentsUptimeStatusConverter {
+
+    @TypeConverter
+    fun fromPaymentsUptimeStatus(uptimeStatus: PaymentsUptimeStatus): String {
+        return uptimeStatus.name
+    }
+
+    @TypeConverter
+    fun toPaymentsUptimeStatus(uptimeStatus: String): PaymentsUptimeStatus {
+        return PaymentsUptimeStatus.valueOf(uptimeStatus)
+    }
+}
diff --git a/android/navi-payment/src/main/java/com/navi/payment/nativepayment/db/dao/PaymentsUptimeDao.kt b/android/navi-payment/src/main/java/com/navi/payment/nativepayment/db/dao/PaymentsUptimeDao.kt
new file mode 100644
index 0000000000..f95f6d9570
--- /dev/null
+++ b/android/navi-payment/src/main/java/com/navi/payment/nativepayment/db/dao/PaymentsUptimeDao.kt
@@ -0,0 +1,35 @@
+/*
+ *
+ *  * Copyright © 2025 by Navi Technologies Limited
+ *  * All rights reserved. Strictly confidential
+ *
+ */
+
+package com.navi.payment.nativepayment.db.dao
+
+import androidx.room.Dao
+import androidx.room.Query
+import androidx.room.RawQuery
+import androidx.room.Transaction
+import androidx.room.Upsert
+import androidx.sqlite.db.SupportSQLiteQuery
+import com.navi.payment.nativepayment.db.NaviPaymentAppDatabase.Companion.UPTIME_STATUS_TABLE
+import com.navi.payment.nativepayment.db.model.PaymentsUptimeEntity
+
+@Dao
+interface PaymentsUptimeDao {
+    @Upsert suspend fun insertAll(paymentsUptimeEntityList: List<PaymentsUptimeEntity>)
+
+    @Query("DELETE FROM $UPTIME_STATUS_TABLE") suspend fun deleteAll()
+
+    @RawQuery suspend fun deleteRows(query: SupportSQLiteQuery): Int
+
+    @Query("SELECT * FROM $UPTIME_STATUS_TABLE WHERE vertical = :vertical")
+    suspend fun getPaymentsUptimeEntityForVertical(vertical: String): List<PaymentsUptimeEntity>
+
+    @Transaction
+    suspend fun deleteAllExistingDataAndInsertAll(uptimeEntityList: List<PaymentsUptimeEntity>) {
+        deleteAll()
+        insertAll(uptimeEntityList)
+    }
+}
diff --git a/android/navi-payment/src/main/java/com/navi/payment/nativepayment/db/di/NaviPaymentDbModule.kt b/android/navi-payment/src/main/java/com/navi/payment/nativepayment/db/di/NaviPaymentDbModule.kt
index 4e71b31840..4159d08a95 100644
--- a/android/navi-payment/src/main/java/com/navi/payment/nativepayment/db/di/NaviPaymentDbModule.kt
+++ b/android/navi-payment/src/main/java/com/navi/payment/nativepayment/db/di/NaviPaymentDbModule.kt
@@ -48,4 +48,9 @@ object NaviPaymentDbModule {
     @Provides
     fun providesBankListDao(naviPaymentAppDatabase: NaviPaymentAppDatabase) =
         naviPaymentAppDatabase.bankListDao()
+
+    @Singleton
+    @Provides
+    fun providesPaymentsUptimeDao(naviPaymentAppDatabase: NaviPaymentAppDatabase) =
+        naviPaymentAppDatabase.paymentUptimeDao()
 }
diff --git a/android/navi-payment/src/main/java/com/navi/payment/nativepayment/db/model/PaymentsUptimeEntity.kt b/android/navi-payment/src/main/java/com/navi/payment/nativepayment/db/model/PaymentsUptimeEntity.kt
new file mode 100644
index 0000000000..a9f4e5b39e
--- /dev/null
+++ b/android/navi-payment/src/main/java/com/navi/payment/nativepayment/db/model/PaymentsUptimeEntity.kt
@@ -0,0 +1,39 @@
+/*
+ *
+ *  * Copyright © 2025 by Navi Technologies Limited
+ *  * All rights reserved. Strictly confidential
+ *
+ */
+
+package com.navi.payment.nativepayment.db.model
+
+import androidx.room.ColumnInfo
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+import androidx.room.TypeConverters
+import com.google.firebase.firestore.DocumentSnapshot
+import com.navi.pay.utils.getIfscForBankUptime
+import com.navi.payment.nativepayment.db.NaviPaymentAppDatabase.Companion.UPTIME_STATUS_TABLE
+import com.navi.payment.nativepayment.db.converter.PaymentsUptimeStatusConverter
+
+@Entity(tableName = UPTIME_STATUS_TABLE)
+data class PaymentsUptimeEntity(
+    @PrimaryKey @ColumnInfo("vertical") val vertical: String,
+    @ColumnInfo("downtimeTitle") val downtimeTitle: String? = null,
+    @ColumnInfo("downtimeDescription") val downtimeDescription: String? = null,
+    @ColumnInfo("status")
+    @TypeConverters(PaymentsUptimeStatusConverter::class)
+    val status: PaymentsUptimeStatus,
+)
+
+fun DocumentSnapshot.toPaymentsUptimeEntity(): PaymentsUptimeEntity {
+    return PaymentsUptimeEntity(
+        vertical = this.id.getIfscForBankUptime(),
+        downtimeTitle = this.getString("downtimeTitle"),
+        downtimeDescription = this.getString("downtimeDescription"),
+        status =
+            PaymentsUptimeStatus.getBankUptimeStatusFromString(
+                bankUptimeStatus = this.getString("status") ?: ""
+            ),
+    )
+}
diff --git a/android/navi-payment/src/main/java/com/navi/payment/nativepayment/db/model/PaymentsUptimeStatus.kt b/android/navi-payment/src/main/java/com/navi/payment/nativepayment/db/model/PaymentsUptimeStatus.kt
new file mode 100644
index 0000000000..705590b03e
--- /dev/null
+++ b/android/navi-payment/src/main/java/com/navi/payment/nativepayment/db/model/PaymentsUptimeStatus.kt
@@ -0,0 +1,21 @@
+/*
+ *
+ *  * Copyright © 2025 by Navi Technologies Limited
+ *  * All rights reserved. Strictly confidential
+ *
+ */
+
+package com.navi.payment.nativepayment.db.model
+
+enum class PaymentsUptimeStatus {
+    UP,
+    WARNING,
+    DOWN;
+
+    companion object {
+        fun getBankUptimeStatusFromString(bankUptimeStatus: String): PaymentsUptimeStatus {
+            return entries.singleOrNull { it.name.equals(bankUptimeStatus, ignoreCase = true) }
+                ?: UP
+        }
+    }
+}
diff --git a/android/navi-payment/src/main/java/com/navi/payment/nativepayment/model/OneClickCheckoutFooterBottomSheetStateHolder.kt b/android/navi-payment/src/main/java/com/navi/payment/nativepayment/model/OneClickCheckoutFooterBottomSheetStateHolder.kt
index 9c00223c04..fa7c4836a7 100644
--- a/android/navi-payment/src/main/java/com/navi/payment/nativepayment/model/OneClickCheckoutFooterBottomSheetStateHolder.kt
+++ b/android/navi-payment/src/main/java/com/navi/payment/nativepayment/model/OneClickCheckoutFooterBottomSheetStateHolder.kt
@@ -7,6 +7,8 @@
 
 package com.navi.payment.nativepayment.model
 
+import com.navi.payment.nativepayment.utils.NaviPaymentErrorConfig
+
 data class OneClickCheckoutFooterBottomSheetStateHolder(
     val showBottomSheet: Boolean,
     val bottomSheetUIState: OneClickCheckoutFooterBottomSheetUiState,
@@ -25,4 +27,7 @@ sealed class OneClickCheckoutFooterBottomSheetUiState {
 
     data class RedirectingBottomSheet(val titleText: String) :
         OneClickCheckoutFooterBottomSheetUiState()
+
+    data class Error(val errorConfig: NaviPaymentErrorConfig) :
+        OneClickCheckoutFooterBottomSheetUiState()
 }
diff --git a/android/navi-payment/src/main/java/com/navi/payment/nativepayment/repository/PaymentsUptimeRepository.kt b/android/navi-payment/src/main/java/com/navi/payment/nativepayment/repository/PaymentsUptimeRepository.kt
new file mode 100644
index 0000000000..c2bdaa9879
--- /dev/null
+++ b/android/navi-payment/src/main/java/com/navi/payment/nativepayment/repository/PaymentsUptimeRepository.kt
@@ -0,0 +1,35 @@
+/*
+ *
+ *  * Copyright © 2025 by Navi Technologies Limited
+ *  * All rights reserved. Strictly confidential
+ *
+ */
+
+package com.navi.payment.nativepayment.repository
+
+import com.navi.common.firebaseremoteconfig.FirebaseRemoteConfigHelper
+import com.navi.common.firebaseremoteconfig.FirebaseRemoteConfigHelper.ENABLE_NAVI_PAYMENT_KILL_SWITCH_MECHANISM
+import com.navi.payment.nativepayment.db.dao.PaymentsUptimeDao
+import com.navi.payment.nativepayment.db.model.PaymentsUptimeEntity
+import com.navi.payment.nativepayment.db.model.PaymentsUptimeStatus
+import javax.inject.Inject
+
+class PaymentsUptimeRepository
+@Inject
+constructor(private val paymentsUptimeDao: PaymentsUptimeDao) {
+
+    suspend fun getPaymentsUptimeEntityForVertical(vertical: String): PaymentsUptimeEntity {
+
+        if (!FirebaseRemoteConfigHelper.getBoolean(ENABLE_NAVI_PAYMENT_KILL_SWITCH_MECHANISM)) {
+            return PaymentsUptimeEntity(vertical = vertical, status = PaymentsUptimeStatus.UP)
+        }
+
+        val paymentsUptimeEntity = paymentsUptimeDao.getPaymentsUptimeEntityForVertical(vertical)
+
+        return paymentsUptimeEntity.firstOrNull()
+            ?: PaymentsUptimeEntity(vertical = vertical, status = PaymentsUptimeStatus.UP)
+    }
+
+    suspend fun deleteAllExistingDataAndInsertAll(uptimeEntityList: List<PaymentsUptimeEntity>) =
+        paymentsUptimeDao.deleteAllExistingDataAndInsertAll(uptimeEntityList = uptimeEntityList)
+}
diff --git a/android/navi-payment/src/main/java/com/navi/payment/nativepayment/sharedviewmodel/NaviCheckoutViewModel.kt b/android/navi-payment/src/main/java/com/navi/payment/nativepayment/sharedviewmodel/NaviCheckoutViewModel.kt
index 30fed3feb5..f888a0c0ad 100644
--- a/android/navi-payment/src/main/java/com/navi/payment/nativepayment/sharedviewmodel/NaviCheckoutViewModel.kt
+++ b/android/navi-payment/src/main/java/com/navi/payment/nativepayment/sharedviewmodel/NaviCheckoutViewModel.kt
@@ -12,20 +12,26 @@ import androidx.lifecycle.viewModelScope
 import com.google.gson.Gson
 import com.google.gson.reflect.TypeToken
 import com.navi.base.AppServiceManager
+import com.navi.base.utils.ResourceProvider
 import com.navi.base.utils.orElse
 import com.navi.base.utils.orFalse
 import com.navi.common.network.models.isSuccessWithData
 import com.navi.common.upi.UpiDataType
 import com.navi.common.usecase.LitmusExperimentsUseCase
 import com.navi.common.utils.Constants.DEFAULT
+import com.navi.naviwidgets.R as WidgetsR
+import com.navi.pay.R as NaviPayR
 import com.navi.pay.common.setup.NaviPayManager
 import com.navi.pay.common.usecase.NaviPayConfigUseCase
+import com.navi.pay.common.viewmodel.NaviPayBaseVM.Companion.ERROR_DEFAULT_TAG
 import com.navi.pay.management.lite.models.NaviPayUpiLiteConfig
 import com.navi.pay.utils.UPI_LITE_CONFIG
+import com.navi.payment.R
 import com.navi.payment.model.common.PaymentSdkInitParams
 import com.navi.payment.model.initiatesdk.PaymentPrefetchDetail
 import com.navi.payment.model.initiatesdk.PaymentPrefetchMethodRequest
 import com.navi.payment.nativepayment.NaviPaymentAnalyticScreenName
+import com.navi.payment.nativepayment.common.usecase.PaymentsUptimePollerUseCase
 import com.navi.payment.nativepayment.common.usecase.TransactionStatusUseCase
 import com.navi.payment.nativepayment.dataprovider.PaymentDataProvider
 import com.navi.payment.nativepayment.dataprovider.PaymentDataProvider.Companion.ACTION_TYPE
@@ -33,14 +39,20 @@ import com.navi.payment.nativepayment.dataprovider.PaymentDataProvider.Companion
 import com.navi.payment.nativepayment.dataprovider.PaymentDataProvider.Companion.PAYMENT_INITIATE_START_TIME
 import com.navi.payment.nativepayment.dataprovider.PaymentDataProvider.Companion.SCREEN_TYPE
 import com.navi.payment.nativepayment.dataprovider.PaymentDataProvider.Companion.UPI_LITE_MAX_PAYABLE_AMOUNT_PER_TRANSACTION
+import com.navi.payment.nativepayment.db.model.PaymentsUptimeStatus
 import com.navi.payment.nativepayment.model.NaviPaymentScreenType
 import com.navi.payment.nativepayment.model.NetBankingPaymentInstrument
 import com.navi.payment.nativepayment.model.PaymentActionType
 import com.navi.payment.nativepayment.model.PaymentInitResponse
 import com.navi.payment.nativepayment.model.S2sPaymentMethodResponse
 import com.navi.payment.nativepayment.repository.PaymentRepository
+import com.navi.payment.nativepayment.repository.PaymentsUptimeRepository
 import com.navi.payment.nativepayment.usecase.NetBankingUseCase
 import com.navi.payment.nativepayment.usecase.PmsLinkedAccountUseCase
+import com.navi.payment.nativepayment.utils.NaviPaymentBottomSheetButtonAction
+import com.navi.payment.nativepayment.utils.NaviPaymentButtonTheme
+import com.navi.payment.nativepayment.utils.NaviPaymentErrorButtonConfig
+import com.navi.payment.nativepayment.utils.NaviPaymentErrorConfig
 import com.navi.payment.nativepayment.utils.getPayloadBasedOnType
 import com.navi.payment.nativepayment.utils.toGenericErrorResponse
 import com.navi.payment.nativepayment.viewmodel.NaviPaymentBaseVM
@@ -74,11 +86,21 @@ constructor(
     protected val transactionStatusUseCase: TransactionStatusUseCase,
     protected val litmusExperimentsUseCase: LitmusExperimentsUseCase,
     private val naviPayConfigUseCase: NaviPayConfigUseCase,
+    private val paymentsUptimePollerUseCase: PaymentsUptimePollerUseCase,
+    protected val paymentsUptimeRepository: PaymentsUptimeRepository,
+    protected val resourceProvider: ResourceProvider,
 ) : NaviPaymentBaseVM(screenName = NaviPaymentAnalyticScreenName.CHECKOUT_SCREEN.screenName) {
 
     protected val _paymentResponse = MutableSharedFlow<PaymentInitResponse>(replay = 0)
     val paymentResponse = _paymentResponse.asSharedFlow()
 
+    init {
+        updateUpiLiteConfig()
+        viewModelScope.safeLaunch(Dispatchers.IO) {
+            paymentsUptimePollerUseCase.executePollerForPaymentsUptime()
+        }
+    }
+
     fun initiatePayment(paymentSdkInitParams: PaymentSdkInitParams) {
         viewModelScope.safeLaunch {
             initializePaymentSession(paymentSdkInitParams.paymentSource.orEmpty())
@@ -211,7 +233,6 @@ constructor(
     protected suspend fun initializePaymentSession(source: String) {
         clearPaymentData()
         fetchPmsExperimentsData(source)
-        updateUpiLiteConfig()
         paymentDataProvider.add(PAYMENT_INITIATE_START_TIME, System.currentTimeMillis())
         _paymentResponse.emit(PaymentInitResponse(isSuccess = false))
     }
@@ -230,4 +251,35 @@ constructor(
             )
         }
     }
+
+    protected suspend fun isPaymentsServiceDown(source: String): NaviPaymentErrorConfig? {
+        val paymentsUptimeEntity =
+            paymentsUptimeRepository.getPaymentsUptimeEntityForVertical(source)
+        return if (paymentsUptimeEntity.status == PaymentsUptimeStatus.DOWN) {
+            NaviPaymentErrorConfig(
+                iconResId = WidgetsR.drawable.ic_error_outlined,
+                title =
+                    paymentsUptimeEntity.downtimeTitle.orElse(
+                        resourceProvider.getString(NaviPayR.string.np_psp_down_message_title)
+                    ),
+                description =
+                    paymentsUptimeEntity.downtimeDescription.orElse(
+                        resourceProvider.getString(NaviPayR.string.np_psp_down_message_desc)
+                    ),
+                buttonConfigs =
+                    listOf(
+                        NaviPaymentErrorButtonConfig(
+                            text = resourceProvider.getString(R.string.okay_got_it),
+                            type = NaviPaymentButtonTheme.Primary,
+                            action = NaviPaymentBottomSheetButtonAction.Dismiss,
+                        )
+                    ),
+                code = UNKNOWN_ERROR_CODE,
+                tag = ERROR_DEFAULT_TAG,
+                showDismissIcon = false,
+            )
+        } else {
+            null
+        }
+    }
 }
diff --git a/android/navi-payment/src/main/java/com/navi/payment/nativepayment/sharedviewmodel/NaviCheckoutViewModelV2.kt b/android/navi-payment/src/main/java/com/navi/payment/nativepayment/sharedviewmodel/NaviCheckoutViewModelV2.kt
index 3e841ef144..9d75d85cd5 100644
--- a/android/navi-payment/src/main/java/com/navi/payment/nativepayment/sharedviewmodel/NaviCheckoutViewModelV2.kt
+++ b/android/navi-payment/src/main/java/com/navi/payment/nativepayment/sharedviewmodel/NaviCheckoutViewModelV2.kt
@@ -53,6 +53,7 @@ import com.navi.payment.R
 import com.navi.payment.model.common.PaymentSdkInitParams
 import com.navi.payment.nativepayment.NaviPaymentAnalyticScreenName
 import com.navi.payment.nativepayment.NaviPaymentAnalytics
+import com.navi.payment.nativepayment.common.usecase.PaymentsUptimePollerUseCase
 import com.navi.payment.nativepayment.common.usecase.TransactionStatusUseCase
 import com.navi.payment.nativepayment.dataprovider.PaymentDataProvider
 import com.navi.payment.nativepayment.dataprovider.PaymentDataProvider.Companion.ACTION_TYPE
@@ -81,9 +82,11 @@ import com.navi.payment.nativepayment.presentation.reducer.OneClickScreenContrac
 import com.navi.payment.nativepayment.presentation.reducer.OneClickScreenEffect
 import com.navi.payment.nativepayment.presentation.reducer.OneClickScreenEvent
 import com.navi.payment.nativepayment.repository.PaymentRepository
+import com.navi.payment.nativepayment.repository.PaymentsUptimeRepository
 import com.navi.payment.nativepayment.usecase.NetBankingUseCase
 import com.navi.payment.nativepayment.usecase.PmsLinkedAccountUseCase
 import com.navi.payment.nativepayment.utils.Constants.NAVI_PAY_ACTION
+import com.navi.payment.nativepayment.utils.NaviPaymentErrorConfig
 import com.navi.payment.nativepayment.utils.getDiscountAdjustedAmount
 import com.navi.payment.nativepayment.utils.getPreferredSelectedAccount
 import com.navi.payment.nativepayment.utils.mapToLinkedAccountEntity
@@ -143,7 +146,9 @@ constructor(
     transactionStatusUseCase: TransactionStatusUseCase,
     litmusExperimentsUseCase: LitmusExperimentsUseCase,
     naviPayConfigUseCase: NaviPayConfigUseCase,
-    private val resourceProvider: ResourceProvider,
+    paymentsUptimePollerUseCase: PaymentsUptimePollerUseCase,
+    paymentsUptimeRepository: PaymentsUptimeRepository,
+    resourceProvider: ResourceProvider,
     private val accountListCheckBalanceUseCase: AccountListCheckBalanceUseCase,
     private val naviPayPspManager: NaviPayPspManager,
     private val arcNudgeUseCase: ArcNudgeUseCase,
@@ -159,6 +164,9 @@ constructor(
         transactionStatusUseCase = transactionStatusUseCase,
         litmusExperimentsUseCase = litmusExperimentsUseCase,
         naviPayConfigUseCase = naviPayConfigUseCase,
+        paymentsUptimePollerUseCase = paymentsUptimePollerUseCase,
+        paymentsUptimeRepository = paymentsUptimeRepository,
+        resourceProvider = resourceProvider,
     ),
     OneClickScreenContract {
 
@@ -246,6 +254,10 @@ constructor(
                     }
 
                     is OneClickScreenEvent.OnBankAccountItemClicked -> {
+                        isPaymentsServiceDown(paymentSource?.name.orEmpty())?.let {
+                            handlePaymentsDowntime(it)
+                            return@safeLaunch
+                        }
                         navigationScreen = NaviPaymentScreenType.FULL_PAYMENT_SCREEN
                         naviPaymentAnalytics.onBankAccountClicked(
                             selectedBankAccountId = state.value.selectedAccount?.accountId.orEmpty()
@@ -617,6 +629,10 @@ constructor(
             state.value.selectedAccount?.eligibilityState?.isAccountEligible?.not().orFalse()
 
     private suspend fun handleCtaClicked(generateToken: () -> Unit) {
+        isPaymentsServiceDown(paymentSource?.name.orEmpty())?.let {
+            handlePaymentsDowntime(it)
+            return
+        }
         when (ctaAction) {
             CheckoutCtaAction.SEND_MONEY_NAVIGATION -> {
                 navigationScreen = NaviPaymentScreenType.ONE_CLICK_CHECKOUT_SCREEN
@@ -792,8 +808,14 @@ constructor(
                 selectedBankAccountId = state.value.selectedAccount?.accountId.orEmpty()
             )
         } else {
-            naviPaymentAnalytics.onRedirectingBottomSheetClosed(
-                selectedBankAccountId = state.value.selectedAccount?.accountId.orEmpty()
+            val error =
+                (bottomSheetStateHolder.value.bottomSheetUIState
+                        as? OneClickCheckoutFooterBottomSheetUiState.Error)
+                    ?.errorConfig
+            naviPaymentAnalytics.onBottomSheetCloseClicked(
+                bottomSheetState =
+                    bottomSheetStateHolder.value.bottomSheetUIState::class.java.simpleName,
+                error = error,
             )
         }
         updateBottomSheetUIState(
@@ -1108,4 +1130,11 @@ constructor(
                 it <= AppServiceManager.appVersionCode
             } ?: false)
     }
+
+    private fun handlePaymentsDowntime(errorConfig: NaviPaymentErrorConfig) {
+        updateBottomSheetUIState(
+            showBottomSheet = true,
+            bottomSheetUIState = OneClickCheckoutFooterBottomSheetUiState.Error(errorConfig),
+        )
+    }
 }
diff --git a/android/navi-payment/src/main/java/com/navi/payment/paymentscreen/model/ErrorReason.kt b/android/navi-payment/src/main/java/com/navi/payment/paymentscreen/model/ErrorReason.kt
index 5364fe25d0..78b620f232 100644
--- a/android/navi-payment/src/main/java/com/navi/payment/paymentscreen/model/ErrorReason.kt
+++ b/android/navi-payment/src/main/java/com/navi/payment/paymentscreen/model/ErrorReason.kt
@@ -1,6 +1,6 @@
 /*
  *
- *  * Copyright © 2024 by Navi Technologies Limited
+ *  * Copyright © 2024-2025 by Navi Technologies Limited
  *  * All rights reserved. Strictly confidential
  *
  */
@@ -27,4 +27,6 @@ sealed class PMSErrorReason : Parcelable, ErrorReason {
     data object TokenNotFoundError : PMSErrorReason()
 
     data object Unknown : PMSErrorReason()
+
+    data object PaymentsServiceDown : PMSErrorReason()
 }
diff --git a/android/navi-payment/src/main/java/com/navi/payment/utils/Constants.kt b/android/navi-payment/src/main/java/com/navi/payment/utils/Constants.kt
index 0c93d1d0f4..b6683e6e6f 100644
--- a/android/navi-payment/src/main/java/com/navi/payment/utils/Constants.kt
+++ b/android/navi-payment/src/main/java/com/navi/payment/utils/Constants.kt
@@ -170,6 +170,9 @@ object Constants {
     const val SCREEN_NAME = "screen_name"
     const val IS_AMOUNT_READ_ONLY = "is_amount_read_only"
 
+    // Firestore
+    const val FIRESTORE_PAYMENTS_UPTIME_COLLECTION_PATH = "navipmt-uptime-status"
+
     // CARDS
     const val CARD_VALIDATION_DEBOUNCE_TIME_IN_MILLIS = 50L
     const val DEFAULT_MIN_CVV_LENGTH = 3