1. Is your son applying for the original registration of his birth, or for carrying out an amendment in his birth certificate? If his birth has been registered with the Registrar of Births and Deaths in then he can get the extract of the Birth register in respect of his birth. 2. On the contrary, if it has not been registered then hr will need to file a civil suit before a civil court seeking declaration of his legal right as to certify his birth date. Then based upon such declaratory decree he can get the proper birth certificate. 3. He would need hospital record of the hospital where he was born.