If you walk the street next to Jehangir Art Gallery, along with the caricaturists and Indian viagra sellers, you will find Lalith Choyal. This 23-year-old, a BMM student at a suburban college, is spreading the word about a barely known musical instrument. In fact, he has quit engineering for it. It's the Zenzula, a tiny instrument, some that fit into the palm of your hand, and is also described as a "thumb piano".

"A friend, Jayvardhan Singh Bisht, met Andrew Masters in France, who is the brain behind the Zenzula. That was around five years ago and now we are all now part of Roots Productions, which has the patent for manufacturing and selling the Zenzula," says the Indore man, as he plucks the spokes on the instrument, which are made at a workshop in Vashi. Made of used sardine cans, exported from Singapore, and steel spokes, the instrument has a sound that's close to a xylophone. The Zenzula comes in two other versions—the Kalimba (with a flat base) and the Cigar Box (with a cigar box as base). "The Zenzulas we make in India are even exported to France."