The provisions of Hindu Adoptions and Maintenance Act, 1956 about who can be adopted is given below for your perusal:
Who can be adopted?
The adopted child can be either male or female. The adopted child must fall under the Hindu category. The adoptee also needs to be unmarried; however, if the particular custom or usage is applicable to the involved parties then the adoptee can be married. The child cannot be the age of sixteen or older, unless again it is custom or the usage is applicable to the involved parties. An adoption can only occur if there is not a child of the same sex of the adopted child still residing in the home. In particular, if a son were to be adopted then the adoptive father or mother must not have a legitimate or adopted son still living in the house.
From the above it can be seen that the child cannot be the age of sixteen years or older.
But you were adopted at your 32nd year of age.
Is your custom allowing this type of adoption?
If not then the adoption itself is invalid and there was no need to execute a cancellation of adoption deed.
Further until and unless there is a defect in the registered adoption deed, similar to your case, a valid adoption cannot be revoked or cancelled.
When an adoption deed was executed properly and accordingly registered the adopted child loses all interests in his biological parents.
If the deed is held to be valid based on the local customs, then you have rights in the property belonging to the adopted father provided his death was intestate. You cannot claim any right in his own and absolute property which he has settled on his own to a third person.
Consult an advocate for more details on the subject.