Immigrationboards.com

Hey guys,

I’ve submitted my passport application but there was a question about parents marriage. I gave all their details but left the marriage date blank because they lost the certificate and they r in Pakistan and have nothing to do with UK.

Will they ask for it? Or delay my application? Just wondering because I have my flight booked for the end of this month.

This is not required - if you were naturalised all you need is your certificate and current/uncancelled passports.
The online/paper forms cover all manner of scenarios for passport applications.