CAT

No. FMS Delhi only accepts CAT scores.

Cut off for FMS Delhi was 98.54 last year. If you score 98+, then depending on your profile, you might get shortlists from MDI, new IIMs, etc,.
With good percentile, you should have good profile as well.

CAT score holds the majority weightage in determining the cumulative score for short-listing followed by the graduation score, 12th marks, 10th marks, additional qualifications (if any) and work experience. Hence considering the expected percentile, there are good chances of getting a call from IIT D. Also the graduation score is decent enough, therefore though the 12th marks are a bit on the lower side but there are good chances of getting a call based on the CAT score and the graduation marks.

Hi Vishnu,
You should not wait for the results to apply to colleges. A lot of colleges close their applications before CAT results.
I suggest that if you are interested in one of the top MBA colleges in India, like the ones mentioned in earlier answer, you should apply for them now only. For others you can wait for some more time and depending upon your results you can apply for them.

SRCC conducts its own entrance for GBO.

Cutoff for open category was 97 percentile last year in snap. Cat does not.makes you eligible for sibm, for it you will have to give snap

No. There is no other way of getting admission. You have to give CAT to get admission under the respective course.

Books and study material are completely depend upon exam pattern, your strategy and strength/weakness of individual.

Yes you can appear for CAT. The minimum cutoff specified by CAT organizing committee is that you should hold at least 50% marks in all the examinations. However post your CAT examination, different colleges provide different weights to different components (Eg. 10th marks, 12th marks and graduation marks). Given that you have less than 60% in class 12th examination, you will get really low point for this. Hence it is very important that you score really really well in CAT to offset the disadvantage you have because of 12th percentage.