DPI Deep Dive — Tuesday | August 18, 2026
DPI Deep Dive — Tuesday | August 18, 2026 This week on the L2 Payments & Financial Rails layer, the single biggest story is the Parliament’s passage of the Taxation and Other Laws (Amendment) Bill, 2026 — which, for the first time since January 2020, cracks open the legal door to a Merchant Discount Rate (MDR) on UPI and RuPay debit card transactions. That one legislative move has triggered a cascade of consequences: a framing debate about who bears the cost of free payments, early behavioural data suggesting consumers are drifting back to cash, NPCI’s record July transaction numbers that simultaneously prove UPI’s dominance and expose its growth deceleration, and an international expansion drive that is using UPI as a diplomatic instrument. Here are the five stories that defined this week. ...