Please see the blog of JPS 50 Sir(as suggested by Kushal Sir): Just go thru
sample RTI application also available in the same.
Copy paste the same in red
Public Regional Officer, Mumbai
hi, my name is rajeev sharma, mumbai. u can try 2 things:-
1. u can online check on www.passport.org
2. u can personally go to the office and place ur application.
i m sure u will find each and every detail about ur passport