For banknifty
If banknifty open flat then
Banknifty sell below 27970 for target 27930-900,27840,27780-760 then trail SL and extend the target 30 30 point
Banknifty buy above 28130 for target 28200,28240,28280-300,28350 then trail SL and extend the target 30 30 point
If banknifty open gap up or gap down then wait for gap fill then take trade