My uncle and aunt expired within a span of 3 months. They have left behind two sons. One son is absolutely fine and runs his own business ages 38 years. Other son is 36 and mentally retarded. The elder brother after the death of her mother got a will from his father that he will inherit all of their properties. Now, its just 18 days today that his father expired, his wife wants to get rid of her mentally retarded BIL. The elder brother loves his younger brother, but is being pressurised by his wife. In real words, he is “ joru ka gulaam.” Both of the parents have left the movable, immovable property worth 80 lakhs. So, my question is whether the younger brother, who is mentally retarded, has any property rights? If yes, how it should be claimed?