Non aquisition form of British citizenship

[Navneet2013]

Dear experts

My daughter is having Indian passport which is due for renewal in may 2018 but we are going for her and her mother's visa extension this september. So we thought to renew her passport now but we came to know that we need confirmation of non aquisition of British citizenship as father is having British passport. Now we want your advise ...should we renew her passport now or we can do it after visa extension. And please tell us about filling non aquisition form's part 1 on behalf of minor.

Thanks