Nanyang Technological University

See on the website its specified that a person will be eligible for admission only if the candidate secures at least 90% marks in all his board subjects (of course excluding Hindi in your case), so maybe your physics marks mess up your chances of getting admitted in that particular college.
Best of luck.

You need to have at least 65 percent in your boards. If you do not have that, then you are not eligible for most colleges. Try for lateral entry if possible.

Hello,
Requirements for NTU is at least 90% in all subjects including English but excluding the other languages in the Standard 12 Board exam. Requirements for NUS is candidates should have a minimum GRE score of 320 (verbal & quantitative) and 3.5 (analytical), or a GMAT score of 650 and above. The minimum TOEFL scores for Internet Based Test (IBT) is 90; or IELTS score of 6.0.

Hi,
MBA eligibility in the universities you mentioned is a good Bachelor's degree, 2-3 years of solid work experience and a very good GMAT score plus strong LOR, essays etc. NUS and NTU are extremely competitive, 570 GMAT seems quite low for admission in these universities. Average recommended GMAT is 680+. Besides these universities you will find a few foreign university campuses and private colleges offering MBAs from foreign universities which you can look up.

If I am not wrong, you are talking about iisc Bangalore and NTU Chhattisgarh. M.Tech is there in iisc and MCA is at NTU. For these two college and courses here is the comparison link. It will help you a lot:
https://www.shiksha.com/resources/college-comparison-87947-23552.