diff --git a/android/navi-bbps/src/main/kotlin/com/navi/bbps/feature/category/BillCategoriesViewModel.kt b/android/navi-bbps/src/main/kotlin/com/navi/bbps/feature/category/BillCategoriesViewModel.kt
index 9d67a18155..cc7d4c459d 100644
--- a/android/navi-bbps/src/main/kotlin/com/navi/bbps/feature/category/BillCategoriesViewModel.kt
+++ b/android/navi-bbps/src/main/kotlin/com/navi/bbps/feature/category/BillCategoriesViewModel.kt
@@ -105,6 +105,7 @@ import com.navi.rr.utils.constants.OffersConstants.OS_TYPE
 import com.ramcosta.composedestinations.spec.Direction
 import dagger.Lazy
 import dagger.hilt.android.lifecycle.HiltViewModel
+import java.util.Collections
 import javax.inject.Inject
 import kotlin.collections.take
 import kotlin.time.Duration.Companion.milliseconds
@@ -206,7 +207,7 @@ constructor(
     private val _refreshBillItemAndStatus = MutableStateFlow(RefreshBillState())
     val refreshBillItemAndStatus = _refreshBillItemAndStatus.asStateFlow()
 
-    private val myAllBills = mutableListOf<MyBillEntity?>()
+    private val myAllBills = Collections.synchronizedList(mutableListOf<MyBillEntity?>())
 
     var arcNudgeResponse: ArcNudgeResponse? = null
 
@@ -590,7 +591,9 @@ constructor(
     }
 
     private fun getTotalUnpaidBills(): List<MyBillEntity> {
-        return myAllBills.filterNotNull().filter { !it.isBillPaid }
+        synchronized(myAllBills) {
+            return myAllBills.filterNotNull().filter { !it.isBillPaid }
+        }
     }
 
     private fun updateMyUnpaidBills() {
diff --git a/android/navi-bbps/src/main/kotlin/com/navi/bbps/feature/prepaidrecharge/ui/RenderPrepaidRechargeScreen.kt b/android/navi-bbps/src/main/kotlin/com/navi/bbps/feature/prepaidrecharge/ui/RenderPrepaidRechargeScreen.kt
index 196d62389b..1283987af2 100644
--- a/android/navi-bbps/src/main/kotlin/com/navi/bbps/feature/prepaidrecharge/ui/RenderPrepaidRechargeScreen.kt
+++ b/android/navi-bbps/src/main/kotlin/com/navi/bbps/feature/prepaidrecharge/ui/RenderPrepaidRechargeScreen.kt
@@ -230,6 +230,9 @@ fun RenderPrepaidRechargeScreen(
                 }
                 is RechargePlansState.Loaded -> {
                     Box(modifier = Modifier.fillMaxSize()) {
+                        // Create a defensive copy to prevent ConcurrentModificationException
+                        val planGroups = prepaidRechargeState.planGroups.toList()
+
                         Column(
                             modifier = Modifier.fillMaxSize().nestedScroll(nestedScrollConnection)
                         ) {
@@ -255,9 +258,7 @@ fun RenderPrepaidRechargeScreen(
                                         )
                                     },
                                 ) {
-                                    prepaidRechargeState.planGroups.forEachIndexed {
-                                        tabIndex,
-                                        planGroup ->
+                                    planGroups.forEachIndexed { tabIndex, planGroup ->
                                         Tab(
                                             modifier = Modifier.wrapContentSize(),
                                             selected = pagerState.currentPage == tabIndex,
@@ -315,14 +316,15 @@ fun RenderPrepaidRechargeScreen(
                                     ShadowStrip()
                                 }
 
+                                // Using the same defensive copy for the HorizontalPager
                                 HorizontalPager(
                                     state = pagerState,
                                     modifier = Modifier.fillMaxWidth(),
-                                    count = prepaidRechargeState.planGroups.size,
+                                    count = planGroups.size,
                                     flingBehavior =
                                         flingBehavior(
                                             pagerState = pagerState,
-                                            noOfPages = prepaidRechargeState.planGroups.size,
+                                            noOfPages = planGroups.size,
                                             minFlingDistance = 100,
                                         ),
                                 ) {
@@ -341,14 +343,9 @@ fun RenderPrepaidRechargeScreen(
                                             Modifier.fillMaxSize().padding(horizontal = 8.dp),
                                         userScrollEnabled = !pagerState.isScrollInProgress,
                                     ) {
-                                        if (
-                                            pagerState.currentPage in
-                                                0 until prepaidRechargeState.planGroups.size
-                                        ) {
+                                        if (pagerState.currentPage in planGroups.indices) {
                                             val selectedTabPlans =
-                                                prepaidRechargeState.planGroups[
-                                                        pagerState.currentPage]
-                                                    .plans
+                                                planGroups[pagerState.currentPage].plans
 
                                             items(selectedTabPlans.size) { index ->
                                                 val plan = selectedTabPlans[index]