This is a free lehra app that contains lehras for Teentaal, Ektaal, Jhaptaal and Roopak taal of instruments like Sitar, Harmonium and Sarangi.
The app allows you to control the speed and pitch of the lehras so that you can practice your Tabla along with it.
This is my first attempt in creating an android app hence the app may not be as polished as the other paid ones out there, but I wanted this to be my contribution to the world of Tabla and hence it is free (even from ads).
Request all my fellow Tabla players to use the app and suggest improvements which I will try to incorporate in subsequent releases.