National University of Singapore

Hi, check here for NUS undergraduate admission
http://www.nus.edu.sg/oam/
NUS is a highly competitive university, good grades in class 12th is must. Take SAT, if you are not from CBSE. CBSE students need not take SAT. Indian students need not take IELTS or TOEFL either. Visit the link above and check programme specific requirements. Submit your application online. LOR and SOP will be required. Here is another helpful link
http://www.nus.edu.sg/oam/apply-to-nus/international-qualifications/admissions-requirements.

For medical courses outside India, you have to give NEET for being eligible. But in some colleges clearing the cutoff is compulsory and in some only inly the appearance will do the eligibility. After NEET, you need to apply for university all around in which you need to study. There are agents and consultancy which provide you with all the services from being selected to the fee receipt of the college. You tickets and visa all the things may be included in the pack itself.

No, its not necessary that you have to appear for GATE to take admission in NUS. Based on your performance in the previous exams and the exams which are conducted for foreign admission, you can easily get admission.

Hi Sreeraj,
Yes GMAT is required and a very good one is preferred. They are among the most competitive. Academically too, you must be sound. You will also require around 2 years work experience to be able to apply to their MBA programme.

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.

Candidates interested in the NUS MBA must apply directly to the NUS Business School Graduate Studies Office and not through education agents. To start the application, you need to indicate at least one MBA programme as Preference 1 under the Preference section. Here is the link for admission procedure-
http://mba.nus.edu/en/admissions/admission-process/.

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.

Hello,
You definitely meet the requirement of the National University of Singapore. You may need to submit the scores of SAT and SAT Subject tests and Advanced placement score report.
http://www.nus.edu.sg/oam/apply-to-nus/International-qualifications-admissions-req-to-NUS.html

Hello,
To get an admission into NUS MBA, you need to have a strong academic record. Should have a minimum of 2 years of work experience. International students need to appear for GRE/GMAT.
Undergraduate students whose course was not taught in English need to appear for IELTS/TOEFL/PTE.

Yes, you are eligible to write CAT exam. You can apply for the same.
Good luck.