10th marksheet certificate up board date of birth change

Hii sir/mam.. Maine up board 10th 2013 me pass kiya meri real date of birth 02/06/1999 hai but Mera Kasturba gandhi school me class 6 admission ke liye date of birth bdhane ke liye kaha gya to mere 5th tc me 08/05/1997 dob kr di gyi vhi 8th 10th me bhi h jo meri real date of birth se 2 year jyada h kya ab change ho sakti h pls reply mere pass birth certificate bhi nhi h....koi solution btaiye ke meri legally real vali date of birth ho jaye...