How much time does it usually take to execute an order of 200 lots in banknifty . If the order is placed single time for 200lots(which is 5000qty as a single order)??
The time taken for your order to get executed depends on liquidity. Also, in single order, you can buy/sell only 100 lots (2500 quantity) of Bank Nifty F&O, you can check the Quantity Freeze limits here.