My dob in old passport is 21/08/1996 and I have birth certificate for it.While my dob on 10th marksheet is 21/03/1996 and I have a birth certificate for that too.So while renewing my passport I took the 21/03/1996 birth certificate in order to get dob changed.But they showed me my birth certificate of 21/08/1996 from their records and refused to change it and escalated my matter to rpo.so what to do in cases like this where 2 birth certificates are there and 10th marksheet and passport also have different dob.please reply urgently.