National University of Singapore

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, you need to appear for english language proficiency test of IELTS or TOEFL and GRE or GMAT
you need to have a very good academic score
http://www.nus.edu.sg/admissions/graduate-studies/graduate-admissions.html.

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.

Here is the complete detail about the admission procedure to get into NUS:
https://studyabroad.shiksha.com/singapore/universities/national-university-of-singapore
For applying to NUS, you have to take SAT and 3 SAT subject test. If you are a CBSE student then it is not compulsory to take SAT for you. TOEFL or IELTS is recommended.

Hi,
NUS has many faculty members and programs. The answer really depends on what you want to study. You should check their website.

The fee for MBA in National University of Singapore is $ 62,000. And, the most important thing is that you need to have at least two years of experience.

JEE Mains and Advanced exams are for pursuing B.Tech in India. For pursuing courses abroad you need to write SAT. For more information regarding the University refer the below link. https://studyabroad.shiksha.com/singapore/universities/national-university-of-singapore.