For stoploss in Intraday use 5 minute chart and see nearest support.
Note: this is not a prediction for LONG/SHORT, trade will trigger only on given level as per technical analysis
NOTE: For Gapup or bo before 9:20 If gapup is more than 1% from bo level than avoid completely. if less than 1% or gives bo before 9:20 than wait for first 5 minute candle and entry above 5 minute candle and revised SL below candle Low.