sir, my father made so many debts and I have cleared most of those debts by selling the land before he died . my father died in 2015. after his death a person sent me legal notice stating that my father owed a sum of rupees one lakh fifty thousand for the purpose of my sisters marriage in 2013 in a promissory note. actually my sister marriage happened in 2011 but in the pro note the amount is taken for sisters marriage is stated. I am thinking it is fake . what shall I do now?