How is TAPMI Management Institute in Manipal for doing a MBA from India for someone with 2.5 years of IT experience?

 Well, it also depends on what your other options are. So I can't tell you if you should choose TAPMI.

But it's worth it if you can handle high academic rigour (which I assume is the case at every top b school) and can stay on campus for two years without going home often.

Here, you can expect a beautiful site, a well-thought-out programme, good job placements, and a quiet last 4-5 months of your MBA. TAPMI is known for placing most of its students in IT jobs, so if you come from an IT background, you have an advantage over your peers.