To my knowledge, in India only the IITs and BITS fall in the first tier. State owned universities like VTU and Anna should be falling in the 2nd tier.
The link above should be sufficient for answering your other queries.
Kudos Please... If my post helped.
I'm surprised to see you dont consider NITs in tier 1? specially BIT mesra ahead of NITs? impossible.
Haha... Sorry... NIT totally skipped my mind... BITS is definitely not ahead of the NITs, especially now after their Dubai Campus getting into which is not that tough and the students get the same certificate as BITS Pilani... Its more of an oversight than not considering.. A tougher critic would maybe say that only the IITs fall in the first tier, the NITs and BITS in the second tier and maybe even ranking state owned universities in the third.... Though, as someone who has a degree from Anna University, I dont like to consider such an analysis.
Kudos Please... If my post helped
Some of the NITs are among top 10 engineering colleges in India.. probably these tough critics are a bit too tough