KarishmaParmar
Hi KarishmaParmar,
Historically speaking, the deadlines of the schools you have mentioned fall in the period of late august to mid january, with 2 rounds for each school.
IIM A, B, C - Round 1 late august to mid sept. Round 2: Nov
ISB - Round 1: Mid oct, Round 2: Mid Jan.
So, if you take your GMAT in mid april, you will have a lot of time to prepare a good application.
However, you need close to 3 months to prepare for the GMAT. If you are starting with the preparation, the followings points might come in handy.
You need to build the concepts/fundamentals before you jump in solving the problems. You can do so by choosing one of the following ways:
1. In person classes/private tutoring
2. Online classes
3. Self paced online preparatory course
4. Book heavy approach
Whatever you choose, make sure that you choose one. Because GMAT tests you on some concepts and fundamentals that you can learn from a course. Most of the prep companies offer a free trial of the course. You can take the trial and see if the course suits you.
In addition to the preparatory material, buy the Official Guides too and the 4 official mock CATs. They should be an indispensable part of your preparation.
You need close to 3 months to prepare well for the GMAT.
1. Understand the concepts and fundamentals before jumping into problem solving
2. Solve full length CATs including AWA and IR. You can get two free GMAT Prep mock CATs and can purchase two more from mba.com
3. Make sure you solve the official questions from the Official Guide