diff --git a/src/main/kotlin/com/android/trisolarisserver/component/DocumentExtractionService.kt b/src/main/kotlin/com/android/trisolarisserver/component/DocumentExtractionService.kt
index 34dd952..2d55f3b 100644
--- a/src/main/kotlin/com/android/trisolarisserver/component/DocumentExtractionService.kt
+++ b/src/main/kotlin/com/android/trisolarisserver/component/DocumentExtractionService.kt
@@ -244,9 +244,10 @@ class DocumentExtractionService(
 
         normalizePinCode(results)
         normalizeIdNumber(results)
-        markAadhaarIfValid(results)
         normalizeAddress(results)
         applyBookingCityUpdates(document, results)
+        // Final Aadhaar checksum pass before doc type decision.
+        markAadhaarIfValid(results)
         results["docType"] = computeDocType(results, handled)
         applyGuestUpdates(document, propertyId, results)
         return ExtractionResult(results, handled)