Can I change my Date of Birth ( a new one) in Passport at the time of Renewal? Is it possible? If yes then how to do that??
Here's an FAQ on errors in a passport:
Passport with incorrect details printed
Q9: Incorrect details have been printed on my passport. What should I do?
A: If you find any mistake/error in the particulars printed in the passport booklet and the application form you submitted, please return the passport for necessary rectification. Any additional fees required to be paid would depend on the merits of the case to be decided by the Assistant Passport Officer (APO)/RPO. If there is a misrepresentation of facts, then penalty could also be imposed. However, applicants are requested to apply online with the view to ensure that the passports are delivered without any typographical errors since applicants have themselves fed the data.
Now what that means in real-life, I don't know.