Indian Institute of Technology, Delhi

The eligibility criteria of M.Sc. Mathematics of IIT Delhi is a Bachelors degree with minimum 55% of marks for general and OBCs and must have studied maths at least two years/four semesters at graduation level.
The admission will be based on ranks/marks obtained in JAM entrance exam.
Therefore, you can be eligible if meeting the above criteria.

Your expected JEE Main AIR is about 22278. The last year closing rank in asked course at IIIT-D was 40562 for Delhi region candidates. While 6442 was for outside Delhi region candidates. So, you can get if belongs to Delhi region.

Expected Cut-Off up to 7 round is 3429
https://www.shiksha.com/university/iit-delhi-indian-institute-of-technology-iitd-53938/cutoff-jee-advanced
You can follow the link for more updates

Hi,
Follow this link to predict your rank:
https://www.shiksha.com/engineering/jee-main-rank-predictor

Just go through this link and fill out the required details:
https://www.shiksha.com/college-predictor

100 is sufficient to get IIT, but I am not sure that you will get a CS branch, you can get into BS in Physics or Maths or else ocean and naval architecture course, and it is also good.