It was 2500 per piece for the bumpers - Front bumper and back bumper (Rs. 2500 x 2 = Rs. 5000)
Furthermore he demanded Rs. 3500 for the trunk (Digi) which i had to bargain with him to reduce to Rs. 3000.
Total expense = Rs. 8000/.
Total expense of Rs. 8000 includes the price of the paint, and the compound/polish which he did to the parts painted by him. Hope it is clear now.