also sell nifty call option of 5700 strike price at around 75 and buy nifty call option of 5800 strike price of feb series at around 42 .one can easily pocket 30/35 points
sell nifty put option of 5600 strike price at around 140 and buy nifty put option of 5500 strike price at around 100 .one can get a premium of 40 easily