NIT

The National Institute of Technology (NIT) ranking for computer Science depends on the All India Rank (AIR) of the candidate. Generally, the top 100 AIR candidates get admission in the top 10 NITs. The following table lists the NITs and their corresponding AIR cutoff for computer Science:
NITAIR Cutoff NIT Trichy1-50
NIT Rourkela51-100
NIT Surathkal101-200
NIT Warangal201-300
NIT Kurukshetra301-400
NIT Durgapur401-500
NIT Calicut501-600
NIT Jamshedpur601-700
NIT Jalandhar701-800
NIT Hamirpur801-900
Since you have an AIR of 3100, you will not be eligible for admission to any of the top 10 NITs. However, you may get admission in other NITs such as NIT Agartala, NIT Bhopal, NIT Delhi, NIT Goa, NIT Patna, etc. Based on their respective AIR cutoff.

Choosing between a high-ranking NIT and a low-ranking IIT for pursuing an M.Tech degree can be a difficult decision. However, in general, it is better to opt for a high-ranking NIT than a low-ranking IIT for pursuing an M.Tech degree. This is because the ranking of an institute reflects its academic and research excellence, infrastructure, faculty, placement opportunities, and other factors that are crucial for a quality education. A high-ranking NIT is likely to have better facilities, resources, and faculty than a low-ranking IIT, which can translate into a better learning experience and better career opportunities for students. Moreover, the placement opportunities and industry collaborations of high-ranking NITs are often comparable or even better than those of low-ranking IITs. Therefore, pursuing an M.Tech degree from a high-ranking NIT can give you a competitive edge in the job market and open up more career opportunities. However, it is important to note that the ranking of an institute should not be the only factor in your decision-making process. You should also consider other factors like the course curriculum, faculty expertise, research opportunities, location, and personal preferences before making a decision. I hope this information helps you in making an informed decision about pursuing an M.Tech degree.