All the aforementioned institutes are well known for their IT programs. However, in terms of course structure and academic ambiance, one should give preference to IIIT Allahabad over MNNIT and NITK. This is because the institute mainly focuses on CS education and its curriculum is also CS tailored. However, in terms of placements, IIIT Allahabad and MNNIT are almost at the same level followed by NIT Surathkal. 

Here is a brief overview of these colleges.

Hope this helps you!

Colleges like NSUT and MNNIT Allahabad have a legacy built over many years. IIIT Delhi will take some time to catch up to the reputation of these colleges.

Regardless, I have tried to rank the three on several parameters, for their CS (CoE) program-

• Coding Culture- NSUT has the best coding culture, followed by MNNIT.

• Curriculum- IIITD has the best curriculum, followed by MNNIT.

• Research and Higher Studies- IIITD offers the best research prospects, followed by NSUT.

• Fests and Clubs- NSUT offers the best fests and clubs, followed by IIITD.

• Infrastructure and facilities- NSUT has the best infrastructure among the three, while MNNIT lags far behind the other two.

• Peer performance- NSUT has the best peer performance, followed by IIITD.

• Faculty-IIITD has the best faculty, while MNNIT and NSUT are at par.

• Alumni Network- MNNIT has a slightly better alumni network than NSUT, while IIITD lags far behind the other two.

Regardless of whichever college you choose for your CS (CoE), your success will come from your own efforts. By studying diligently and polishing your skills, you will land a well paying job, regardless of your graduation college.

I am a student of B.Tech Chemical at MNNIT Allahabad. Here is some information to help you arrive at a conclusion-

• Placements- Chemical has better placements. Its batch strength is almost one third that of Mechanical. Moreover, a good number of companies visit the Chemical department with job offers. The average package for Chemical and Mechanical is 10 LPA and 7 LPA respectively. In recent years, the Chemical department has attained 100% placements, while Mechanical receives around 80% placements.

• ESE- For Engineering Services (IES), you’ll have to choose Mechanical Engineering as Chemical students can not give ESE.

• GATE- Both Chemical and Mechanical are equally good for public sector jobs/ M.Tech/ Phd. The competition is much higher in Mechanical, but the number of vacancies in PSUs through GATE is also higher for it. 

The GATE syllabus for Chemical is comparatively smaller.

• ISRO/ BARC/ DRDO- Both the branches carry equal opportunities in these areas.

• PSU through campus- Branch toppers are selected by PSUs for placements. The selections are made on resume based shortlisting, GD and interview. Companies like BPCL, GAIL and IOCL visit the campus for recruitments. Sometimes GAIL does not allow Mechanical students to sit for placements. Thus, Chemical students have better chances of placement in PSUs. The smaller batch strength of Chemical is a big aid in placements. 

Both the branches are good in their own way. You should select the one that suits your goals and future plans.

NIT Allahabad is a better choice than NIT Jamshedpur, especially for CSE. If you are not getting CSE, try going for IT because the branches are somewhat similar. Moreover, NIT Allahabad has options for internal sliding too so you can try your luck there. Chances of sliding to CSE are rare so you can try going for IT instead. 

Also, If you are considering joining a core branch, except CSE, IT, and ECE, remember that you will have to appear for GATE in the last year to get a job in PSUs.

From the above table, it can be inferred that NIT Allahabad has better placements and lower fees than NIT Jamshedpur. So it's a better choice than NIT Jamshedpur.

All NITs are well-reputed institutes that ensure quality education in India. Let us look into the features of NITs in detail.

Daily Life – All the NITs follow the same system, and there is no significant difference between them. The classes begin at 9 a.m. and end at 5 p.m., with a one-hour break in the afternoon. Like other colleges, regular classes are conducted five days a week, and on the weekends, students can take part in extracurricular activities. They also provide decent hostel facilities for the students

Ragging – It is strictly prohibited in all the NITs. Instead, there are state-wise groups of students that give students a chance to interact with the seniors.

Food – NIT Trichy is more into south Indian dishes, while other NITs have both south Indian and North Indian food.

Faculty and Placement – NITs have well-qualified scholars and guarantee 100% placement to the students, irrespective of the branches.

So, you can select any of the NITs based on your preference 

Two of my close friends are studying at NIT Surathkal and MNNIT Allahabad respectively and often I hear them comparing their colleges based on some aspects. 

• Environment: Both NITs have a well-maintained and lush green campus. NIT Surathkal has a slight advantage because of its private beach. So, if you love beaches and swimming NIT Surathkal is for you. NIT Allahabad offers scenic views at Sangam and students enjoy taking holy baths and spending evenings there.
• Faculty: MNNIT Allahabad are very friendly and often use their native language during lectures while NIT Surathkla professors are a nit professional and never use their native language in the classroom.
• Placements : The average package of IT at NIT Suratkal is INR 23.03 LPA while that of CSE at MNNIT is INR 27.07 LPA. MNNIT Allahabad has slightly better placements although NIT Surathkal has a better location. 
• Food: It may be difficult to get non-veg food in Allahabad within the hostel premises. In NIT-S, there is no such restriction and a variety of non-veg food is offered. 

Ultimately, the choice is yours!