Many of the street boys here sniff "solution" -- you see them holding small pieces of cloth to their nose, and then hide it in their pockets. These pieces of cloth are soaked with something, usually paper correction fluid, available for 25 rupees a bottle.
Salman, the son of one of our street moms, is addicted to "solution." He's so addicted to it that he cries when we take his bottle of paper correction fluid from him, and he often shows up with dried white fluid on his hands and face.
It's a really sad situation, with many young street boys are addicted like this.