I buy nifty at 21050 call at 75 LTP 2 days before now it reach 12 LTP and tomorrow expiry of nifty then possibility it can again reach 75 LTP if nifty touch 21050?
No, ATM at expiry open usually range 35-45! in this regime
If there’s a gap-up at 21050, as @AlgoEye has rightly mentioned it should be between 35-45
Good news for you right now is - There was a huge surge in US markets overnight due to dovish fed policy with Dow jones nearly closing higher by 1.5% , Gift nifty is at 21250 indicating a nifty opening at 21100-21120
Maybe you can get lucky and the option opens near or even above your cost.
PS : But yeah, luck doesn’t always favour us. So, unless it’s a hero zero bet , SL is always recommended for options 