NIT

Your JEE Mains ST category rank is 6690 so you would have quite a good opportunity in getting admission in different NITs, GFTIs and IIITs. Though the best departments in the best institutes may be hard, there are other reputed institutes that provide various type of engineering degrees in which you will have a chance to get an admission under JoSAA counseling. The advice is to be active during the counseling rounds and discuss all the possible options.

Several NITs offer M.Sc. Mathematics programs through the IIT JAM exam. These include NIT Trichy, NIT Warangal, NIT Calicut, NIT Jalandhar, NIT Rourkela, NIT Allahabad (MNNIT), and NIT Durgapur. Additionally, NITs like NIT Agartala, NIT Hamirpur, NIT Jamshedpur, NIT Manipur, NIT Srinagar, and NIT Silchar also participate in the CCMN (Centralized Counseling for M.Sc./M.Sc. (Tech.) Admissions) for M.Sc. programs, including mathematics

With a rank of 2426 in IIT JAM (Mathematics), you are likely eligible for several NITs and some of the newer IITs for MSc programs. You should be able to get into NITs like NIT Silchar, NIT Srinagar, and possibly some others with your rank

You might also be eligible for newer IITs like IIT Jodhpur, IIT Mandi, or IIT Ropar, but it depends on the specific programme and cutoff for each institute. 

With a score of 53.26 percentile in JEE Main, your chances of getting into a National Institute of Technology (NIT) are very low, especially for general or OBC categories. NITs generally have high cutoffs, with the lowest being in the 70-85 percentile range for SC/ST and around 97-99.5+ for General/OBC

With an OBC NCL rank of 15741, consider these NITs for ECE:

- NIT Delhi (12218)

- VNIT Nagpur (6490)

- NIT Jamshedpur (7307)

- NIT Durgapur (8124)

- NIT Hamirpur (11225)

NIT Rourkela, Warangal, and Surathkal are less likely. Check official websites for updates.

91.79 is a good score.Your chances for getting an admission depends upon the category and the state you belong.NITs have 50% reservation for home state students. You have a good chance in getting admission to electrical engineering and mechanical engineering. Maybe you can get admission to Computer Science engineering in newer of less popular NITs.you can explore NITs like NIT arunachal pradesh, NIT Puducherry etc.

With a rank of 3000 in JEE Main (SC category), consider NITs like:

- NIT Patna

- NIT Kurukshetra

- NIT Jamshedpur

- MANIT Bhopal

- NIT Raipur

Check JoSAA website for updates.

With 83 percentile and ranks 250606 (Gen) & 36043 (EWS), consider:

- Lower-tier NITs (NIT Sikkim, NIT Arunachal Pradesh)

- GFTIs (DCRUST, UIET Kurukshetra, HBTU Kanpur)

- State-level colleges (RTU, LNCT, VIT)

Apply to multiple colleges or explore management quota. Cutoffs vary annually.

With a 63,000 rank in JEE Mains and Bihar as your home state, consider:

- *NIT Patna*: Possible chance (cutoff: 40,309-43,151)

- *NIT Agartala*: Possible chance (cutoff: 51,656)

- *NIT Silchar*: Possible chance (cutoff: 44,300)

Yes, you can potentially get into some newer tier 3 and its or other government-funded Technical Institute with a JEE main rank of 135272 specialty under specific circumstances like reserve categories, home state quotas or less competitive branches.