diff --git a/android/navi-bbps/src/main/kotlin/com/navi/bbps/feature/category/ui/BillCategoriesCoinUtilisationComposables.kt b/android/navi-bbps/src/main/kotlin/com/navi/bbps/feature/category/ui/BillCategoriesCoinUtilisationComposables.kt
index 4365022021..1d2d1bccf9 100644
--- a/android/navi-bbps/src/main/kotlin/com/navi/bbps/feature/category/ui/BillCategoriesCoinUtilisationComposables.kt
+++ b/android/navi-bbps/src/main/kotlin/com/navi/bbps/feature/category/ui/BillCategoriesCoinUtilisationComposables.kt
@@ -36,6 +36,7 @@ import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import androidx.constraintlayout.compose.ConstraintLayout
 import com.navi.base.utils.EMPTY
+import com.navi.base.utils.orZero
 import com.navi.bbps.R
 import com.navi.bbps.common.NAVI_BBPS_MAX_COIN_EARN
 import com.navi.bbps.common.theme.NaviBbpsColor
@@ -164,17 +165,22 @@ fun additionalInfo(): AnnotatedString {
         val wordToHighlight = stringResource(id = R.string.bbps_rupee_zero)
         append(fullText)
 
-        addStyle(
-            style =
-                SpanStyle(
-                    color = NaviBbpsColor.textSecondary,
-                    fontFamily = ttComposeFontFamily,
-                    fontSize = 12.sp,
-                    fontWeight = getFontWeight(FontWeightEnum.NAVI_BODY_DEMI_BOLD)
-                ),
-            start = fullText.indexOf(wordToHighlight),
-            end = fullText.indexOf(wordToHighlight) + wordToHighlight.length
-        )
+        val start = fullText.indexOf(wordToHighlight)
+        val end = start + wordToHighlight.length
+
+        if (start >= 0 && end <= fullText.length) {
+            addStyle(
+                style =
+                    SpanStyle(
+                        color = NaviBbpsColor.textSecondary,
+                        fontFamily = ttComposeFontFamily,
+                        fontSize = 12.sp,
+                        fontWeight = getFontWeight(FontWeightEnum.NAVI_BODY_DEMI_BOLD)
+                    ),
+                start = start,
+                end = end
+            )
+        }
     }
     return descriptionText
 }
@@ -308,7 +314,10 @@ fun rewardBurnCalloutDescription(rewardsDetails: RewardDataEntity): AnnotatedStr
             )
         append(fullText)
 
-        if (fullText != null) {
+        val start = fullText?.indexOf(wordToHighlight).orZero()
+        val end = start + wordToHighlight.length
+
+        if (fullText != null && start >= 0 && end <= fullText.length) {
             addStyle(
                 style =
                     SpanStyle(
@@ -317,8 +326,8 @@ fun rewardBurnCalloutDescription(rewardsDetails: RewardDataEntity): AnnotatedStr
                         fontSize = 12.sp,
                         fontWeight = getFontWeight(FontWeightEnum.NAVI_BODY_DEMI_BOLD)
                     ),
-                start = fullText.indexOf(wordToHighlight),
-                end = fullText.indexOf(wordToHighlight) + wordToHighlight.length
+                start = start,
+                end = end
             )
         }
     }
@@ -470,17 +479,21 @@ fun burnNudgeTextWithDifferentStyle(rewardsDetails: RewardDataEntity): Annotated
                 )
                 .trim()
         append(fullText)
-        addStyle(
-            style =
-                SpanStyle(
-                    color = NaviBbpsColor.brandSecondaryGreen,
-                    fontFamily = ttComposeFontFamily,
-                    fontSize = 10.sp,
-                    fontWeight = getFontWeight(FontWeightEnum.NAVI_BODY_DEMI_BOLD)
-                ),
-            start = fullText.indexOf(wordToHighlight),
-            end = fullText.indexOf(wordToHighlight) + wordToHighlight.length
-        )
+        val start = fullText.indexOf(wordToHighlight)
+        val end = start + wordToHighlight.length
+        if (start >= 0 && end <= fullText.length) {
+            addStyle(
+                style =
+                    SpanStyle(
+                        color = NaviBbpsColor.brandSecondaryGreen,
+                        fontFamily = ttComposeFontFamily,
+                        fontSize = 10.sp,
+                        fontWeight = getFontWeight(FontWeightEnum.NAVI_BODY_DEMI_BOLD)
+                    ),
+                start = start,
+                end = end
+            )
+        }
     }
     return burnNudgeText
 }
@@ -575,17 +588,22 @@ fun earnStripTextWithDifferentStyle(rewardsDetails: RewardDataEntity): Annotated
         val fullText = rewardsDetails.earnStripText
         val wordToHighlight = stringResource(id = R.string.bbps_rupee_zero)
         append(fullText)
-        addStyle(
-            style =
-                SpanStyle(
-                    color = NaviBbpsColor.textWhite,
-                    fontFamily = ttComposeFontFamily,
-                    fontSize = 12.sp,
-                    fontWeight = getFontWeight(FontWeightEnum.NAVI_BODY_DEMI_BOLD)
-                ),
-            start = fullText.indexOf(wordToHighlight),
-            end = fullText.indexOf(wordToHighlight) + wordToHighlight.length
-        )
+        val start = fullText.indexOf(wordToHighlight)
+        val end = start + wordToHighlight.length
+
+        if (start >= 0 && end <= fullText.length) {
+            addStyle(
+                style =
+                    SpanStyle(
+                        color = NaviBbpsColor.textWhite,
+                        fontFamily = ttComposeFontFamily,
+                        fontSize = 12.sp,
+                        fontWeight = getFontWeight(FontWeightEnum.NAVI_BODY_DEMI_BOLD)
+                    ),
+                start = start,
+                end = end
+            )
+        }
     }
     return burnNudgeText
 }