Dear...nifty closing price is 5799.75.....so your 5800 CE expired..worthless...I did similar trick last expiry..with similar result...
Hi,
I also did same thing last time.
So one of the observation is that. Till 3.15 market is moved into one direction & after that it is moved in opposite direction.
As closing price is decided after avg last 15min trade actual closing after adjustment is much lower.
Same happened today last traded price was 5822 but closing is at 5799.75 which made options worthless.
but still you are lucky if actual closing would have come 5800.05 then it would have considered as ITM option & STT & other taxes would have been applicable on that.