If the birth certificate through Corporation on the orders of competent court will not serve the purpose, better skip that process.

You can apply for birth certificate with the Corporation authorities mentioning the correct date of birth, if the authorities refuse to give the same since their records show a different date, ask them to give the same in writing and after that by impleading them as a sparty and on the basis of that refusal you may file a suit before the jurisdictional civil court for declaring the correct date of birth as per the passport and the judgement copy will be sufficient to solve the purpose.

1) school will not change date of birth in school leaving certificate after many years without court orders. and would insist on production of birth certificate

2) on basis of birth certificate issued by the muncipal corporation as per court orders you can then obtain orders for correction of date of birth in school leaving certificate

1. Before proceeding against the corporation you ought to have filed the petition against his school which has refused to rectify the date of birth in his school leaving certificate.

2. Failure to obtain the birth certificate within a year from the date of birth does not render nugatory the birth certificate subsequently acquired.

try to expedite the petition before the judicial magistrate, if this is achieved then you need not worry at all in trying to find a legal document to prove his date of birth.

Hi sir/madam, after getting the birth certificate from the birth and death registrar office on the basis of court order. You have to submit the same alongwith school refused endorsement and to fie issued a legal notice to the concerned school and colleges if wherever is necessary in the records of schools and also to issued a legal notice to the concerned DDPI, State of Maharashtra Chief Secretary for the same, from the date of receipt of the legal notice and after two months (60 days) you have to file civil suit for declaration of change of name from the old to New name and to conduct the matter and to get the decree and the same decree copy to be submit before school and they will rectify or entered in the said school records in their school registers, it is the procedure. It will very helpful to you and your child in future.