Selling deep OTM on expiry day (above circuit breaker levels)

Trading
1

Given the present volatility condition certain deep OTM money are available at high premiums even on the expiry day (every Thu). My query is if on any such expiry day, I were to sell an OTM Nifty option having strike 20% above or below the previous day close, would that be a guaranteed premium pocketing ?

Reason is that 20% above of below NIFTY movement on any day would result in circuit breaker and stop trading for the rest of the day?

2

If your m2m goes above certain limit your broker might square it off .
Other than that it’s safe

3

But I wouldn’t I get a margin call before that with the option to add funds ?