Comment on STT Trap - Options Expiry - NSE BSE MCX-SX

Nitin,

When I had short sold an option and don’t square it off by EOD on an expiry day, I think the exchange closes the same with the closing price. But, the contract note I receive from Zerodha does not show the exchange order number and it shows something like 111111111. If the exchange closes the order, why is this happening?

Also, the contract note shows a different price than that of the closing price shown by the exchange. why?

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