Its really not comparable as MTNL in whole. There is no UNLIMITED package at all for mumbai users. And now with a possibility of 512kbit from Airtel, I dont see how MTNL is even considered a fair competition. As of right now, MTNL should just come up with 512UNLIMITED (DAY AND NIGHT) to redeem the negative impact they have as monopolistic and predatory pricing OVERALL. Hopefully we should see something happen, HOPEFULLY.Try going online and asking someone to send you something, then tell them you have a 256kbit line (broadband) but to wait till our midnight to be able to send you large files else, its costing you. Trust me, you will be felt sorry for.