A mother who has 2 sons (A & B) and 1 daughter (C), acquires a property land and passes away without making a will. A, B & C construct a house on the plot and live there with their families for a few years together. B & C move away from this house and live in their own houses after some time. Now, presently A and his family have been living in the house for the last 30 years.
Now A, B & C have decided jointly to sell away the property. B&C have coerced A to agree on the matter, as he is their sibling. However the family of A who have been living in the house for the last 30 years do not want the property to be sold off, as they will not have a place to stay in. Also, they believe that even if the house is sold off, B & C will cheat A and not give him his due share. However in the whole scenario, A will not act to retain his or his family's share in the property.
Can the children or wife of A initiate a legal proceeding to stop the sale of this property? What is their share?
Also, since they've been living their for 30 years, is there a law which will prevent their eviction from the property?
A, B & C and their families are Christians from Tamil Nadu.