IIM

There are a number of courses so obviously the criteria are different for each course, so which course are you talking about exactly? One more thing I would like to tell you as your expert adviser is that, getting admission with 56% might be possible but sustaining is very difficult and getting a good job would be very difficult if your percentage, continues to deteriorate like this. I am not trying to discourage, but please work hard.
All the best for your future endeavors!

Yes, middle class can think about it. You can take loan, as fees will be around INR. 20, 00,000 for 2 years. Good luck.

CAT/GMAT is accepted in IIMs.

Yes, you can. the last year's cut-off for IIM-A was 80%ile but for IIM-L, it was 90%ile.
Try your luck.
All the best.

Hello,
You can go for FPM course from IIM which is the fellowship programme in management.

Hello,
According to me, Doon Business School cannot be compared with IIMs.

No, work experience is not mandatory to get admission in IIM. Yes, you can take CAT to pursue distance MBA.

As you have just prepared for it, so don't worry, everything is going to be fine.
Good luck.

Hi Akash,
You have a good chance in getting calls from most of the top B schools such as IIMA, IIMB, IIMI, and FMS Delhi. Rest, based on your engineering stream, 10th 12th boards, and percentiles in individual components (VA, QA and DI LR), you can try predicting your colleges. For reference, the following link might come in use-https://www.shiksha.com/mba/resources/iim-call-predictor
Hope this helps.
All the best!

Hello,Though CAT is conducted by the IIMS, but it's score is taken by many other colleges also. Those are called non-IIM member in CAT.