CBSE 12th

Yes, you can apply.

NCERT is best but its language is not easy to understand. You can go for the physics for pradeep publications, chemistry for lakshmi publications, Math for rs agarwal. This is on my observations.

First of all, will you be specific and what do you mean by saying "campassing in the plea”?
Other than that, search for institutes where the criteria is 50% marks above, since your +2 marks is 57%.
Also, there are organizations where candidates with 50% marks and above get a chance to be recruited.

Hi Harsh, For making your improvement exam marks in consider with your admission application, you need to appear for all the subjects in the consecutive year. You can't just sit for one or two subjects. And if you have appeared for all the subjects again in the next year, BITS will definitely consider your candidature. All the best.

No, firstly you have to complete your class 12th for any graduation degree. It is a must to complete class 12th. After that, you can surely apply for what you want.

Yes, you stand a clear chance.
All the best.

Yes, it is definitely okay to drop a year for CAT preparations but if you work hard for it, not just for fun because CAT is not an exam which can be qualified easily. This exam is conducted to check the capability and Eligibility of a student who want to study in IIM and B business colleges. So, if you can consume work time, you can do it but if you cannot qualify that a drop will not be good for you.
Good luck.
Thank you.

Hello Akshay, chances of conversion totally depend on your GD-PI performance on the day. The various weights assigned to the stages in the process are as follows :
1. CAT percentile: 65%.
2. PI: 20%.
3. GD:10%.
4. Work experience: 5%.
So don't worry and concentrate on giving your best during the process! All the best!

The list for the batch of 2018-20 is already out. If you have applied please check here:
http://dms.iitd.ac.in/mba-full-admission.html
Also, 76% is a low percentile but the ultimate convert depends on the SI score which takes into consideration a lot of other parameters as well.
Try to score more than 90 percentile to get the interview call.