Hi all,
I got 770(IR7, QA50, VA45) in my second GMAT attempt on 27/4/15.
I joined Jamboree Regular classes only.
So My GMAT prep involved mostly the following material.
1. Official questions (Everything under the sun).
2. Jamboree material.
3.
MGMAT (SC guide and test series only).
4. CR Powerscore Bible
5. Explanations of only Official questions on online forums.
For my score,I'll give most of the credit only to Jamboree.
The main USP of jamboree pune is the instructor. He not only mentored me for GMAT but also guided me towards some crucial improvements in my profile.
But still i would suggest Pay a visit to some centres in pune and take only an informed decision.