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

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?

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

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