Option Call Expiry

What happens when an option expires?

Example: Let CMP of Airtel: 440

If I sell/write Airtel 460 CE one day before expiry then shall I get all the premiums for the lot if the stock price is below 460 on expiry?

I don’t want to squareoff my option by buying.

pls read zerodha varsity chapters on it…there r few basic risk details into it…

Yes. At present You will get all the premium if Airtel expired below 460.