Hindu Family. There are two brothers X and Y with good bonding. X had no kids/issue while Mr. Y had one son and two daughters. Mr. X requested Mr. Y that since he has no child so he will keep Y’s eldest daughter with him and bring her up like own child. Mr. Y obliged Mr. X and gave his daughter Y1 since she was 2 years old. There was no legal adoption procedure. However from Class X onwards in all certificates Y1 has Mr. X as her father name. Both X and Y lived in different cities. Y 1was completely born and brought up by X. Y1's marriage was also solemnized by X. The question is -
Is Y1 now a legally adopted daughter of X ? Does father's name in Class X marksheet indicates that the child is legally adopted one?