A property owner in Karnataka purchased land in 2019 via an absolute sale deed. The land was originally partitioned in 1968 to a second wife for maintenance, with a clause preventing its sale. She sold it in 1970, and it has changed hands twice since then. Now, the grandchildren of the first wife have filed a civil suit claiming the original sale deed was invalid due to the restrictive clause. The current owner seeks advice on the validity of the suit, given the significant time lapse and multiple subsequent sales.