Today will be gap up opening expected above 35500 level. If banknifty sustain above this level then possible further 400-500+ points upside rally in first half session. 36000 will act as an immediate resistance after the rally. In case breakout of this resistance gives again 500+ points upside movement in banknifty. Downside possible if it is trading below 35450 level upto the 35000 support level.