Engineering

Sure you can use GATE DA (Data Science and Artificial Intelligence) score to become eligible to M.Tech AI or similar streams. Most of the prestigious schools such as IIT Hyderabad, IISc Bangalore, IIT Delhi (Machine Intelligence and Data Science) and IIIT Bangalore (Artificial Intelligence and Data Science) clearly take into account GATE DA scores in the admission process. Your GATE score is very important but in the end a combination of your score/academic background and a written test/interview is done to make the final selection. The eligibility and selection criteria will always vary with subjects so check on the official website of the respective institute.

To NIT Puducherry CSE, since your percentile in JEE Main is 90, and since, moreover, you belong to the SC category, female, and home state candidate, you stand a good chance. The closing ranks have ranged between 19,562 (2022) and 29,725 (2024) based on the past years cutoffs of the SC Home State Female candidates of NIT Puducherry cutoffs at CSE. A 90 percentile ordinarily will represent a position between 101,352-112,695 (via 2024 data). Although your percentile is okay, change it into exact rank so that you have a better perspective. The most important thing is your rank in a specific category SC Home State Female, and, judging by the previous years, a rank in this category in the 90 percentile (with this percentile corresponding to the rank that is significantly higher than the SC category cutoffs on CSE at NITPY) would most likely give you a good chance.

As far as Techno India University Kolkata is involved, it just seems to have a greater reputation and B.Tech rankings than Sister Nivedita University. Techno India University Kolkata is ranked at 39/175 and top in Kolkata according to The Times of India Engineering Ranks, and 2nd, according to  comparison, whereas, Sister Nivedita University is anywhere between 113-200 by the Outlook Engineering. There is also a tendency of Techno India to obtain a greater none average student rating as well as average reported placements. However, in certain reviews, the highest package (INR 51 LPA) as stated in Sister Nivedita University is very high and might be an outlier. To reach a balanced decision in between, it is best that you compare certain B.Tech branches, the faculty and have a feel of both the campuses, provided you get a chance to do so.

B.Tech CSE at DTU is very competitive, with General category receiving the most competition. In this case, General Category - Outside Delhi candidates can hardly afford to rejoice at a rank below 70000 within CSE 2017 as closing ranks do not even go beyond 10000 (and in most cases much below).But, in case you are under the Delhi Region ( Home State Quota ) and fell under a reserved category ( OBC-NCL, SC, ST, EWS ), ranks below 70,000 could provide an opportunity to CSE or similar stream such as IT, Software Engineering, or Mathematics and Computing as cutoffs of these three categories can go even much higher. It is important to match the individual category and cutoff percentages of quota 2025 through official JAC Delhi site.