Case study regarding less output liability paid

A supplier invoiced a customer for Rs. 50,000 but only declared Rs. 45,000 in their GSTR-1 for FY 18-19. The customer claimed input tax credit on the full Rs. 50,000. As the amendment deadline has passed, the recommended approach is to explain the situation to the tax department if a notice is received, potentially reversing the excess ITC. It's also advised to request the supplier refund the difference.