my mother purchased house for RS11000 in 1964 lived in it from last 58yrs she spent about RS 3500000 FOR REPAIRS IMPROVEMENTS remodelling so far. she sell the house for RS 7661000.THE BUILDER GIVEN rs 5161000 by cheque and agreed to give 2 apartments deucting 2500000in auust2011.she kept RS 1000000 IN POSTOFFICE SENIOR CITIZEN SCHEME AND balance to her 3 sons. pl intimate how much tax payble towards incometax.she is 78yrs housewife no income pl intimate the tax applicable and is ther any time to pay tax as trasaction was done in august only kindly help me