CMAT

Yes, you are eligible to take admission in JIMS, Rohini.

No, the score is too low, apply for ATMA and MAT of April and May attempt fetch scores above 95% because both of these exams are easy and you can get admission on the basis of that.

Good MBA colleges which you can get based on 68 percentile in CMAT 2018 are mentioned below:
1) Jaipuria Institute of Management, Lucknow
2) Kirloskar Institute of Advanced Management Studies, Harihar & Pune
3) Thiagarajar School of Management, Madurai
4) Siva Sivani Institute of Management, Secunderabad
5) AIMS Bangalore
6) Pune University Department of Management Studies, Pune
7) Doon Business School, Dehradun
8) Acharya School of Management, Bangalore
9) Galgotias Business School, Greater Noida
Regards.

Yes, N L Dalmia accepts CMAT score. All the best.

It does't matter you belong to which board. Your performance in GD and PI matter. Prepare your self regarding this only. And start from Current topics like GDP, 100% Retail, E-commerce, and many more. Read ET ( Economic Times ) Regularly and if you have any experience or you done any live project mention properly ( your learning ). All the best.

You have cleared the cut off. Currently the placements are going on, its not so good but students are getting placed slowly and gradually.

Your profile is good.
Focus on GDPI, be well prepared.
You have good chances of converting the call

No the minimum eligibility is 75%ile in any of the competitive exam.

XIME Bangalore is definitely a good option over IPE, Hyderabad for Banking and finance.

Yes, you can get admission in AIMS as your CMAT marks meets up to the eligibility criteria of the college admission process. So, I will suggest you should definitely apply for it.