Amid opposition demands to roll back the 0.4 per cent Merchant Discount Rate (MDR) on select UPI payments, government sources on Thursday said the decision followed due consideration, and the government will closely monitor implementation to ensure merchants do not pass the charges on to consumers. “Efforts will be made to plug gaps in enforcement. Govt has held discussions with payment aggregators. Govt will closely monitor effective implementation to ensure that merchants do not pass on the charges to consumers,” sources were quoted as saying by news agency ANI.