Those who trade banknifty & nifty expiry will be excited to trade bankex & sensex expiry on 26 May 2023. I guess it will be the first expiry to be opened to retail traders !
I just checked the zerodha kite app, the option chain is still not integrated it seems, also the weightage of bank stocks of banknifty (NSE) is not same as bankex (BSE) - so request you to...