Change name in certificate
How to hange name in engg certifiate a per 1oth class

I completed my BE under anna university affiliated college in the year 2008. my name in the 10th class is bala eswara reddy dwaram but in engineering is bala eswar reddy d. i want to change as per my 10th class. may the procedure and how much it cost. i am from andhra pradesh but i completed my engg in chennai and whom i have to contact