Clean up two areas at the same time : Remove debris (malba) piles from one area and use them to fill pot-holes, low-lying depressions or to keep hand-pump areas clean. Start street-by-street clean-up drives.
As in most Indian cities, debris (malba) is a major problem. It does not only make a city look untidy and dirty. It causes traffic problems and accidents, especially to pedestrians and two wheeler riders, by forcing traffic into the wrong lane to avoid heaps on the road.
Several inner-city quarries and some on the outskirts of Bangalore have already been identified. Satellite photos will show up more. Include all in your GIS. All belong initially to the State Govt’s Mines & Geology Dept, but some have been transferred (by the Revenue Dept?) to BCC. Find out the land ownership status of each quarry. E.g. at Adugodi, 2 acres has gone from State to BCC to Slum Board, while an adjacent portion is claimed to be private property in the name of a builder. Is the private title genuine?