Today will be gap up opening in BANKNIFTY. After opening if banknifty sustain above 52050 level then possible upside rally of 400-500 points upto 52550 level & this rally can extend another 400 points if market gives breakout 52550 level in todays session. Any Major downside only expected in case banknifty starts trading below 51950 level.also possible reversal downside 52450 level.