Munna Qureshi feels dizzy in close, cramped spaces. The heat and fumes emanating from gas cutters reflect off the walls of the narrow, cramped tunnel. Tiny, dark spaces, like the one he often finds himself in, make him giddy. Even the shards of light from the flames spitting out of the gas cutters do not help. The flames run the risk of injury and the fumes make him gasp for air.