My family had bought a land at fair market price in 1990. In 2009, previous owner died. After 2 months, previous owners daughter-in-law filed a case alleging that my family grabbed their land. Case dragged for 15 years. We won till HC. But ultimately we had to sell land and a settlement was done to give the daughter in law 15 lakh to withdraw case. we had to spend lakhs on court cases. In mean time land value increased by 8X. That is only good thing happened in whole saga.
Nothing related to your scenario, but anything is possible in India.