Why is ₹2,000 in focus amid debate over MDR on UPI payments?

For Indians who use UPI every day, ₹2,000 has become a key number in the debate over possible return of merchant discount rate (MDR). The cut-off has been used since government's scheme began in FY2021-22 to identify low-value BHIM-UPI person-to-merchant transactions eligible for incentives. After Parliament changed rules on electronic-payment charges, ₹2,000 emerged as one possible MDR threshold.