Hi

I recognise your concerns and they are perfectly valid. Your Ward's birth certificate is a strong proof, however you should keep these documents with you too, there are strong chances that they might be required.

1. Proof for date of birth such as 10th Passing Certificate, school leaving certificate or hospital record etc.
2. Proof of any ancestral property in India.
3. ID Proof with Place of Birth Address (Ration Card/ Driving License/ Voter ID etc.)
4. Copy of passport (Front and last page).
5. Signed letter of an authority