Integrated Solid Waste Management in Kalwa, Thane.

Kalwa's waste problem is mostly one of reach. Many lanes in the hill-side settlements are too narrow for a collection vehicle, so waste is carried down by hand or not at all, and what is not collected ends up in the nalas. When those nalas block in the first heavy rain, water backs up into the homes beside them. The workable answer is ward-level: handcart routes into the lanes, collection points people will use, segregation at those points, and nala screens for what still gets through.

Kalwa lies across the creek from central Thane, joined to it by the Kalwa bridges and the railway. It is one of TMC's ward committees, and it is densely lived in: older buildings near the station, chawls, and large settlements climbing the lower slopes of the Parsik hills, with newer buildings on flatter ground. The creek edge on its western side is lined with mangroves, and nalas from the hill run down through the settlements into it. Thane-Belapur Road begins at its southern end. Open ground is scarce, and much of what exists is unplanned.