Explanation:

Toomba is a famous folk instrument of Punjab, which is entirely based on Iktara (single stringed instrument), used by the legend singers. Now it's been adopted by a number of Punjabi folk singers. Toomba is made of wooden sticks mounted with a Toomba or wooden resonator covered with skin. A metallic string is passed on a resonator over a bridge and tied to the key at the end of the stick. The string is struck with a finger or sometimes with the Mizrab, and the Swaras are made by pressing the string to the stick.