It’s for you to decide whether it is a good decision or not. But only CS or ECE at NIT Trichy, NIT Surathkal, or NIT Warangal or CS in other NITs such as Allahabad, Calicut, and Rourkela can be compared to IIT courses. 

NIT Calicut is prestigious. It does not come in the top 5 NITs, but it is definitely in the top 10. But you are only receiving ECE in NIT Calicut. So, you should think it through before leaving an IIT.

Make an informed decision. Otherwise, you will be sorry in four years. Finally, it is entirely up to you.

Currently, NIT Calicut follows a hybrid grading system. While some subjects follow absolute grading, some subjects follow relative grading. It depends on the subject and the professor teaching the particular subject. However, a subject can have only one kind of grading system.

The relative grading system followed by NIT Calicut is different from that followed at the IITs. It has nothing to do with the percentiles. The marks obtained by the top 5% - 10% of the students are given the top grade, i.e. S. All other students are given grades lower than them accordingly.

NIT Calicut and NIT Rourkela both are reputed institutes. They offer quality education to students across the country. But in terms of NIRF running, NIT Rourkela stands ahead of NIT Calicut. In the 2020 ranking, NIT Rourkela was placed at 16 for B.Tech while NIT Calicut was ranked 23 by NIRF. 

NIT Rourkela offers various courses in UG and PG. All the departments of the institute both old and new, have good placement records. In the past students also received foreign internships from countries like Canada, Germany, etc. In the placement drive of 2021, the average CTC offered to the students was 9.36 LPA.

Besides a good academic environment, NIT Rourkela has a vibrant club culture. There are over 50 clubs on campus. 

If you are financially stable, then you should prefer BTS Goa. NIT C has gotten worse in the following years. 

In NIT C, the students of some branches are getting back and the percentage of those back students are almost 50%. The environment of NIT C is hard to sustain and after being a Govt. Deemed University the faculty and students do whatever they feel like. Like one of the professors was given a warning after he was found guilty because of sexual harassment. 

NIT is known nationwide for the quality of students. It's not the Institute that makes a good student, it's rather the students that make an Institute good. The same is the case with NITs. If you want to join NIT, choose NIT Surathkal.

So, BITS is also a better option as compared to NIT Calicut which is as prestigious as IITs. One of the locations of BITS is Goa, which is indeed a dream destination for engineers. You will enjoy studying there. 

NIT Calicut has the cons mentioned above but not all the faculties are the same. Some of them are highly educated and decent.

In the Engineering category, the National Institute of Technology (NIT) Calicut is ranked 28th by NIRF in 2019 whereas, in The World University Rankings 2020, the institute has been ranked at the band of 401-500 for the Engineering and Technology category. ICT Mumbai has been ranked 7th among all the Indian universities by The World University Rankings 2020.

Department:

NIT Calicut:

The institute offers graduate, postgraduate, and doctorate programs in chemical engineering. The admission to BTech and MTech in Chemical Engineering is through JEE Mains and GATE.

• In addition to the curricular activities, the department conducts continuing education programs for academic faculty and engineering professionals, job-oriented short-term training programs, and faculty development programs.

• The department is facilitated with laboratories designed for undergraduate, graduate, and research students.

• The research group and specialization include Microfluidics, Biosorption, WasteWater Treatment, Biofuels, Polymer Technology, and many more.

ICT Mumbai:

Consecutively for 3 years, the department is ranked 1 in the country by The Confederation of Indian Industries (CII) and AICTE survey. For admission to BTech and MTech, the institute accepts JEE mains and GATE scores.

• The major thrust of research areas includes Green Technology, Development of Novel Reactors, Reactions and Separation Processes, Adsorptive and Chromatographic Separations, Advanced Separation Techniques, Nanoscience and Nanotechnology, Industrial Crystallization and Filtration, etc.

• The department is highly equipped with state-of-the-art research facilities.

Placement:

NIT Calicut:

• The placement cell at the institute offers dream opportunities to the students across renowned and reputed organizations and companies.

• The placement rate for BTech Chemical Engineering in the academic year 2019-2020 was 83.33%.

• The highest CTC offered was INR 30 LPA and the average CTC of INR 8.01 LPA was offered.

ICT Mumbai:

• The institute holds a placement percentage of 90%.

• The highest package offered was INR 18 LPA while the average package was INR 5 LPA.

• Top recruiters include TATA motors, Honeywell, Jacobs, Nerolac, BPCL, etc.

Facilities:

NIT Calicut:

On-campus, the institute offers numerous facilities and provisions for its students. This includes healthcare facilities, sports ground, and courts, hostels with necessary facilities, transport provisions, well-stocked library.

ICT Mumbai:

A wide range of facilities is provided by the institute that includes a library, sports complex, laboratories, hostels, wi-fi campus, gym.

Both the institutes have gained a good reputation owing to their high standards of education and qualified faculty. Moreover, scholarships are also offered by the institutes as financial assistance to the students.

One of my friends is studying in the NIT Calicut Electronics department so I can give you insight into what opportunities lie in the Electronics branch.

• If your college is at the same level as NITs, then pursuing Electronics from NIT Calicut would not be the right choice.
• Doing the PG program from NIT Calicut will not be a good idea.
• Even for Electronics Engineering UG students, it is difficult to get decent-paying jobs unless they join IT.
• For PG students getting decent CTC, placement is also difficult.
• Several students prepare for GATE and other exams to get good job opportunities.

Therefore, if you want to make your career in Electronics then choose good IITs. As Electronics is a vast field, you can try to focus on the specialization that will be useful in your career.

Mechanical/Electrical Engineering is superior to Production Engineering because Mechanical engineers can apply for jobs in the field of Production, whereas Production engineers cannot apply for core Mechanical jobs.

So, instead of selecting Production, I will recommend Mechanical /Electrical at NIT Durgapur in this case. 

Here is a brief outline of NIT Durgapur. 

Choose between Mechanical and Electrical based on your interests.

In terms of the research field, there are almost no placements opportunities in Engineering Physics at NIT Calicut. The only companies where you will be are allowed to apply for the placements are in the Consultancy services, Sales, etc. 

Basically, we can say that NIT Calicut has nothing to offer to the students of Physics. If you want a decent job, then you should work on your coding skills else, you will have to do the basic 8-7 jobs.

You can also apply for IIT JEE coaching institutes as these companies offer better salaries and less workload. If you wish to pursue higher studies in the future, you can get a side job at one of these coaching institutes and prepare for your entrance exams. This way you will be in touch with your subject and earn part-time.