In one of the incident the father was aged about 60 years he had son (X) aged around 36 years and a daughter (Y) she was married in year 1991. The son was a govt employee and lost his job in year 1988 due to misappropriation of money. He was dismissed from the govt job and was been facing civil and criminal cases. He had 3 children studying (SSLC, PUC and 8th standard) in pvt school in city. In the year 1991 the son (X) wanted to sell the property to meet the family necessity, children fees and court expenses. Son (X) wife wanted to save the property so she approached her father and got money from her father to meet the family necessity and court expenses. Later son (X) transferred the property to his wife this was happened in the year 1991, since she given money. The son (X) father was alive till 1995.
Will son (X) is considered as karta to alienate the property without consulting his sister?
His alienation to wife was questioned by daughter (Y) in court in 2010? Is this valid?.
How to prove that son was the karta.?
As per my knowledge, karta cannot be questioned about the alienation after 12 years?