I tried to use the MTS data card(Mblaze) for internet, but I was let down by the experience.
The network reception is terrible. I live in New Town, Kolkata, by no means a remote area that would justify the poor reception. There are frequent disconnections and even when it gets connected the internet speed reminds me of the dial-up days.
MTS will do well to upgrade its infrastructure and expand its coverage or as the price of 3G goes down, it’ll lose out to its competitors. Until they improve, I would not be willing to recommend their service.