Vahan 4-139-7 ((link)) -

The case presented a high-stakes constitutional question:

Vahan uses a check-digit validation for chassis numbers. If the original dealer entry had a typo (e.g., MH12AB1234 instead of MH12AB1235 ), any subsequent transaction triggers vahan 4-139-7 because the scanned chassis number at the time of fitness (Module 4) fails validation rule 7. vahan 4-139-7

Once resolved, take these steps to ensure the error never returns: MH12AB1234 instead of MH12AB1235 )