349000-250000=99000 as per sec 87a if Total income does not exceed 350000 then deduction of 2500 or 100% of tax whichever is less so tax on 99000 was:- 99000*5%=4950 LESS REBATE u/s 87A= 2500 balance 2450 plus 3% surcharge on 2450 = 74 Total Tax Liability was 2450+ 74 =2524