What is settlement price of deep in the money stock options?

Take for example June expiry of HInd Unilever-

On Jun25th closing price of Hindustan Unilever-
Equity- 2156.5
Future- 2153.9

2100 call option- Last traded price was 60

So, if i hold 2100 call option which was left to expire, what will be the settlement price of my Call option?
is it on underlying price in that case 56.5 or on last traded price of call option which is 60?

It is settled on underlying close. In this case HUL closed at 2156.5 so 2100 CE will expire at 56.5.

Thank you!