Last October, Rishy Rane was out gorging on fast food with his friends in South Mumbai, when he couldn't find a dustbin around to throw the trash. Not one to litter, the teenager walked for 20 minutes, asking passers-by for directions, to find a bin. And thus, the idea to make this process easier via technology took root in the mind of the computer science and programming enthusiast.

Nearly eight months on, the Worli resident has developed GARBO, a mobile app to locate dustbins around the city.