According to Medhatithi and Vijnanesvara possession with a legal title was the proof of ownership. One might be in possession of property but as long as title to that property was not clearly proved, he could not become the owner of it. It is the duty of a purchaser to verify the title of the seller before purchase. Whatever may be the facts about possession, in a case in which the property has been enjoyed by a person for three Generations that property cannot be confiscated by the king. In other words, the person in possession for three Generations of a property is treated to be the absolute owner of that property. Sukra holds that if a man enjoys the land for a period of 20 years and the owner in fit to file the suit in a law-court, still he does not do so, the previous owner cannot claim the land. In case a man is in possession of a plot of land for many hundred years and the real owner is found out, the king should punish him like a thief.