With all the hate going around here in reviews, surprisingly I've found the experience with TTN to be pretty good till now. They were awful around 2 years back when I started using and but I've seen them improve a lot. Connection speed and latency is pretty good and disconnections are rare now. Customer support has improved considerably but not still upto the mark.
They offer better bandwidth and value for money than other ISP's like airtel, so its worth giving them a shot. Do not pay upfront for 6month/year and you can always discontinue them if you do not find them satidfactory