Unable to Sell Nifty 50 Option due to change in lot size

F&O
1

I am unable to Sell Nifty 50 Option due to change in lot size from 25 to 75.
The option is a Put call for March expiry with a strike price of 25k.
Will my option get auto-exercised and I will get the money if the option remain In the money during expiry, like Nifty remain below 25k

2

That’s correct, @noobtrader

This will be settled by the exchange when the March contracts expire