Auction market price

Hello Friends,
If call option expires ITM and I don’t have stock in my holding to give, in this case broker/exchange will buy for me and deliver to the party, how do I know the price of buying in auction market .?

You will receive the auction contract note which will have this details. You can check out how the process works here:

Hi ShubhS9 Thanks,
How about other charges, like any penalties, interest charged by broker/exchange also mentioned in the Contract Note or Ledger .? Or any other invoice?