MBA/PGDM

I would suggest you JIMS-Rohini, as it is one of the best PGDM colleges. JIMS-Rohini is approved by AICTE, accredited by NAAC, NBA. It is also approved by AIU by which our PGDM becomes equivalent to MBA. JIMS also provide the best faculty and course curriculum, which is very helpful. From grooming to personality development and field work, you will get to learn everything here.

Your CAT percentile is low, but your profile is good. So, I would suggest you to apply for BITS Pilani MBA, you may get a call for admissions.

There is no such perfect score for admission in BITS Pilani MBA, as it is completely a profile based selection process. However, you have decent chances for getting a call, do apply.

Your CAT Score is low, but since BITS Pilani follows a profile based selection, I would suggest you to apply. You may get a call, keep your hopes high.

PIMR has an edge over IMS in terms of placements.

Yes, a computer background student from the relevant branch is eligible to pursue MBA in Oil and Gas Management at UPES.
Marketing is also a good option to take from UPES. Excellent placement and other opportunities are given here.
Follow the attached link to get each insight and the reviews by the alumni of UPES.
https://www.upes.ac.in/mba-oil-gas-management

It depends upon your category. If you belong to SC/ST category, then you may get GD /PI call from NIT Trichy. All IITs and NITs are best colleges for MBA in terms of ROI.