Comment on STT Trap - Options Expiry - NSE BSE MCX-SX
1) Yes, when you square off our positions, the margin blocked for having written such options will be released. It’ll be released the day you square off the option
2) Covered call is when you short a call option while holding stocks of the same underlying. You do this when you expect don’t expect the stock price to go high in the near future. You’ve to hold units of Nifty bees if you’ve to write Nifty covered calls