want to change birth date

Hi, i want to change my birth year on 10th certificate and mark sheets. As on my birth certificate it is 1997 and all other document it is 1996 . So can anyone tell me the procedure? Thanks in advance

date of birth is registered in school leaving certificate / high school pass certificate , it cannot be changed.For CBSC students upto 5 years from the date of pass is eligible to apply for correction with the board. 

this is not a legal query.  this is a query on procedure.

 

contact the authority which issued certificate.