Yeh hai mera India!
The Indian law already grants any Tibetan who was born in India between 1950 and 1987 to apply for Indian citizenship. The CTA has also acknowledged that they do not have the authority to stop any Tibetan from applying for Indian citizenship.
Passport is issued by any country to its residents as a legal document that validates his/her international travel and also acts as a proof of citizenship. All the countries in the world have distinctive passports that vary in design.