CBSE 10th

Kindly visit the link:
https://www.shiksha.com/mba/mat-exam-cutoff

The first stage of NTSE is the state level examination which has two parts for nominating fixed number of students for the second level examination to be conducted by the NCERT
Part-I : Mental Ability Test MAT and
Part-II: Scholastic Aptitude Test SAT (with questions on History, Civics, Geography, Economics, Maths, Physics, Chemistry and Biology.)
For more details please follow official website:
http://ntsehelpline.com/ntse-stage-1/.

With 77 percentile, you cannot get call from any IIM, so there is no use to apply for IIMs.
If you want MBA from private college, then you should apply.
Best of luck.

Eligibility Criteria: BE /B.Tech in Engineering disciplines or a Master's Degree in any discipline from any recognized university or any Integrated First Degree of BITS. Candidates should have obtained a minimum of 60% aggregate marks in qualifying degree.

Hi Aayush,
You have a good chance for GDPI shortlist, which will be announced in a week. Do keep in mind there are many other factors too that'll affect the selection process. Prepare well and all the best.

I think you have very low chance of getting a call letter from BITS, Pilani because for this you need to have required higher percentage and you should have some technical skills that you are eligible for this.

Yes, as it is a private university, so your aggregate should be 55 percent.

Welingkar accepts CMAT 80 percentile and above scores.

MAT score is Not considered in Welingkar.

If you are general student, then aim for at least 99% in CAT exam. 50% in graduation is required to be eligible and it will only be asked about in interviews.