Construction cost for building=
2600sqft x 1650rs =42,90,000/-rs
Underground sump=
12,000litres x 25rs =3,00,000/-rs
Septic tank = 8000litres x 20rs =1,60,000/-rs
Compound wall if required will cost Rs.1200/- per RFT
So total cost will be 42,90,000/-
For more details inbox me :9094733347/8056184699