2025-10-30
The Securities and Exchange Board of India (SEBI) mandates that stock exchanges adjust constituents and weights of existing Non-Benchmark Indices to comply with prudential norms for derivatives. Compliance for BANKEX and FINNIFTY must be achieved in a single tranche by December 31, 2025, while BANKNIFTY requires phased adjustments over four monthly tranches concluding by March 31, 2026. Stock exchanges and clearing corporations are directed to implement these changes and update their systems to ensure orderly rebalancing and investor protection.