<h1>NSE Shifts Nifty Derivatives Expiry to Monday, BSE Shares Drop Over 3% Amid Market Reaction</h1> Shares of BSE Ltd fell over 3% after its competitor, NSE, announced a change in the expiry schedule for Nifty index weekly derivatives contracts, moving them from Thursday to Monday starting April 4. BSE's stock closed at Rs 4,290 on the NSE, having dropped nearly 9.4% during the day to a low of Rs 4,035.10. Meanwhile, the broader Nifty index rebounded by 1.15% to 22,337.30. NSE's changes also affect the expiry of other derivatives, including Bank Nifty and FinNifty, shifting them to the last Monday of the expiry month.