According to the NSE circular released on March 4, 2025, the Nifty expiry day for all F&O contracts was set to shift from Thursday to Monday. The new Monday expiry index structure was scheduled to take effect from April 5, 2025, affecting both weekly and monthly Nifty 50 expiry dates. NSE opted for Nifty 50 as its benchmark, discontinuing Bank Nifty, Nifty Financial Services, and Nifty Midcap Select weekly expiries. BSE selected the Sensex index, dropping BANKEX and Sensex 50 weekly contracts. Bank Nifty, FinNifty, Nifty Midcap Select, and Nifty Next50 contracts will also shift to Monday expiries. The expiry date for monthly stock derivatives will now be the last Monday of the respective expiry month. If Monday is a market holiday, the expiry will be preponed to the preceding trading day. NIFTY Weekly Contracts will now expire on Monday instead of Thursday. NIFTY Monthly, Quarterly, and Half-Yearly Contracts will also shift from the last Thursday to the last Monday of the expiry month.