The 10th Class certificate will be treated as original dte of birth as it is statutory document which cannot be denied by the Supreme Court. Hence treat the dte of birth mentioned in your certificate as the authentic one even if it is wrong for any reasons. No law can change your date of birth which had been entered in 10th Class certificate... Just remember and whatever procedures you will be using to alter or change the date of birth will be in violation of law and for the same you can land into ponds of trouble.
For astrological purpose you can use your original date of birth and for documents you Ought to use your statutory date of birth certificate.
