Renew Indian passport for minors

My kid has got her passport when she was 1 month old. She is 5 now. Her passport is due for renewal.

I went thru your document Renew Indian Passport in USA (VFS Process, Documents) - USA

Question 1: what is self sworn affidavit? Is it needed for minors?

I also got the checklist.
My kid can’t sign so using thumb impression.

Question 2: For minors is it mandatory to get “affidavit for change of appearance and signature” form? If yes, where can I get sample of that form?

All forms and the sign instructions are mentioned on the blog link you have shared.

Just follow it stepwise and you will be in the right spot.