Can we prove adoption, without adoption deed

Sir the adoptive father as aged about 87 sir, if we drag the case and spend more time, he and my father's biological parents are only the ppl to prove tht my dad was adopted. If we lost the second will be on higher altitude of her powers. Cause adoptive father did a gift deed to her name without whispering any matter to my father..

Does adoptive father admits the adoption in court.

By the fear of his second wife he will not say the truth sir, he and her wife sat during adoption physical exchange of baby infront of purohith. My dad's biological parents are still there, they are condemning that how could he sat he did not adopt. Without a permission of husband how can a woman can adopt a child and after her death he didn't wanted adopted child he would have sent back, but he didn't do that he took all work and money advantage from adopted son and after all fullfillness now he is say i did not adopt you.. he wrote in one sale deed that wen my was 7yrs old he was my son. Wen he didn't married second wife wen his first wife was there he took family photo of them also we have that photo.

Wait until adoptive father dies then after file suit that you as adopted son and deny second marriage and prove with relevant documents you are adopted son and she is not wife.