At last, a company is prepared to be disruptive and shake up the stagnation of the Indian mobile market. This may be the third largest in the world in terms of subscriber numbers, with higher growth than the US or China, but its regulator persists in imposing excessive spectrum charges and red tape, while no mobile operator has had the courage to counter this with creative business thinking, rather than just legal challenges and general negativity. Now Reliance Jio has burst on the scene with low cost 4G-only data services and free voice, combined with a whole suite of applications and content. It has many challeneges. Its network is criticized for being slow compared to some rivals’ 4G. It certainly…