Auction notice

Learned experts, my father - Rohit, lives in Delhi and his brother- Rajeev, lives in Australia for past 18 years. We used to give the money to Rajeev to pay the house tax. But for four consecutive years i.e. from 1990 to 1994, he payed no house tax and then left for Australia, Rajeev wanted to get the whole property sold out and get his share. Eventually we received an auction notice for our property. My father- rohit payed all the arrears and got the auction cancelled. Now in 2012 Rajeev is again pushing to sell the property where as my father is saying that he(Rohit) got the property out of auction after paying the arrears and he should get the upper hand. My father doesnt want to sell the property please advice. this property is an ancestral JF property.