A free program for Android, by Sodiarc Technologies.
This is the female version of the popular tanpura. It is a two-headed drum, usually made of bronze or metal, which is used as an instrument in Indian classical music to play a drone sound. It has two major heads, one for playing the drone and the other for playing the melody. Each head is a separate instrument. It is a small, portable, and easy-to-use device, so you can take it with you to any event or party.
This app is an amazing collection of different tunes, all the best ones that are currently being played in different parts of the country.