Adoption without legal process

Sorry I wanted to say Maternal Uncle.

No you can't. No special procedure required for adoption. Since all your official records says your adoptive father as your father it would be easy to prove for the opponent that adoption was valid. Law will also presume in favor of the adoption

Superb life story ! bravo, kudos.

But why you want biological fathers property now?  He was not there all long, why you want his property now?

 

Answer is you cant have his property now.

Shame, when it comes to property anybody can wag tongue.

A bird in hand is worth two, three birds in a tree. 

If your biological father dies intestate then you can claim your share as you are still a legal heir to your father.

The issue here is whether after  adoption the adopted son will have a right over the property of his biological father,the answer is absulutely NO.Better go through section 12 of Hindu Adoption and Maintenance Act 1956.

Section 12 & 13 of Hindu Adoption and Maintenance Act 1956 is quoted below -

"12. Effect of adoptions- An adopted child shall be deemed to be the child of his or her adoptive father or mother for all purposes with effect from the date of the adoption and from such date all the ties of the child in the family of his or her birth shall be deemed to be severed and replaced by those created by the adoption in the adoptive family.
Provided that-
(a) the child cannot marry any person whom he or she could not have married if he or she had continued in the family of his or her birth;
(b) any property which vested in the adopted child before the adoption shall continue to vest in such person subject to the obligations, if any, attaching to the ownership of such property, including the obligation to maintain relatives in the family of his or her birth;
(c) the adopted child shall not divest any person of any estate which vested in him or her before the adoption.
13. Right of adoptive parents to dispose of their properties- Subject to any agreement to the contrary, an adoption does not deprive the adoptive father or mother of the power to dispose of his or her property by transfer inter vivos or by will."

Property of biological father which is self earned, he can do whatever he wants. If he dies intestate, you can claim your legal share in his self earned property as well as ancestral/ inherited property. The property which is ancestral/ inherited by your biological father, you have your legal share. In order to prevent complications, if possible make sure that he does not sell the ancestral/ inherited property away without giving your due legal share. Best would be to sit with an experienced property lawyer and discuss your future course of action.

Since your adoption was not legally done, may be your school rcords have your adopted father as father, if you have birth certificate to prove your biological father's name, may be you  have a chance to claim a share out of his intestate proeprties. Whatever worth it is, you may send a legal notice claiming your share and partition, see the result  and approach the court if necessary. 

As far as I know, adoption requires giving and taking on papers, which has not been done in your case. So, i feel you have right in your fathers property as you are still a legal heir. But my question is why you want share in property when they did not loved you and you also did not had any relation with them in past.