Hii raja...
U invested in 80C of rs 1,00,000 then allowed as deduction of rs 1,00,000 ...your taxable income is 8,00,000 then your tax liability as follow
( 5,00,000 ~ 2,00,000 ) =3,00,000 tax @ 10%
Remaining amount 3,00,000 tax @ 20% then 30,000 +60,000= 90,000 add 3% of tax amount is education cess....your total liability is ..92,700