Call / Put. Buy / Sell. Now Worthless. What Next.?

What will happen in below scenario: Profit / Loss, High STT, Penalties etc...

Before expiry Buy Nifty / Bank Nifty Call and not covering it, As on expiry its worthless now ...

Before expiry Sell Nifty / Bank Nifty Call and not covering it, As on expiry its worthless now ...

Before expiry Buy Nifty / Bank Nifty Put and not covering it, As on expiry its worthless now ...

Before expiry Sell Nifty / Bank Nifty Put and not covering it, As on expiry its worthless now ...

Check the below links.