CAT

This is not a BBA+MBA graduate course. The IIMs are not allowed to offer degrees as of now. At the end of 5 years, you will get a Diploma. As to pursuing doctoral programs, there is no precedence for this as no student has opted for it till now, who was a participant in this course. But one thing is for sure, you won't have to give CAT to pursue those.

You can start your preparation topic wise. The time is less for preparation. So, you should start with logical reasoning and data interpretation. Also, go with English language. Then, go for GK and mathematical aptitude. Just create a time of the day and divide your day in four parts in which every part should be given equal weightage. This will help you in covering a large syllabus in less time.

Dear,
Find out if there is a TIME, IMS, Career Launcher, etc. coaching centres as these are the best coaching centres in India.

But they have already closed the applications for MBA.

TIME.
They provide not only good coaching and material for practice but also, they conduct various model exams every week and once the syllabus is over they conduct model exams every day for about 3 weeks.

Almost TIME Institute provide common coaching across India, and their faculty also good. Check near you to find out further, you should start your own preparation initially, at later stage take coaching. All the best.

To get a call from an old IIM, your focus should be on getting above 95% marks in CAT with sectional cut of around 80 percentile.
If you belong to reserved category, you can receive 80 percentile, then you can perform well at GDPI also.

Hi,
There is no specific coaching class which can be called 'best'. It depends upon how well you utilise the resources given by them. Though, you can consider the likes of TIME, IMS, Career Launcher, etc. And if possible, do attend their demo lecture to have a better idea of their teaching methodology. I hope it helps.