I think if possible it would be a good idea to get a Birth certificate. At least it will help avoid some delays. In India the procedure for Birth certificate is
Get an affidavit from Notary Public in name of your parents declaring your birth and date of Birth
SDM orders registration of birth in Municipal corporation
Municipal corporations registers the birth and issues a certificate
It takes about 3 weeks but probably can give more assurance that documents are in place
Thank you benny, satish, ankit and nimmiboy for ur response is there any body with aleady accepted application without providing birth certificate
Regards