Name changes

Dear all

My name is Kemidi Nagatejaswi but  my ssc & Inter certificates name as Kamidi Nagatejesvi and in degree certificate my name is Kamidi Nagatejaswi

Now i want  to correction in all certificates  my name as Kemidi Nagatejaswi

Can u please tell me the procedure?

If its not possible to change surname atleast i want to correct the given name

please guide me sir

Thanking u all