Tata docomo vas also have pay as you use option
Interestingly certain VAS in Tata Docomo like the 24hr music channel, voice chat service, etc are also on per second rates…this means that if a song is for 3 mins (which most of the songs these days are) then you play only 360 paisa for it (as the charge is 2p/sec)….you don't need to pay a monthly subscription fee like 30Rs and all!