One of my friends graduated from IGIT this year. Here are a few things that I got to know about the Mechanical branch at IGIT. 

Placements:

According to the statistics the placement sector is down in almost all colleges of Odisha. Seeing on the placement statistics of past years hardly a core company came for placement in IGIT.

• Companies like Vedanta, Jindal, and Bhushan did come for the core sector but the probability of students getting selected is not up to the mark.
• Most mechanical engineers join TCS or Tech Mahindra in IT. Very few of the students get placed in core companies like Vedanta, Jindal, or Bhushan.

This same situation can be seen in colleges like VSSUT and CET too. But they arrange some off-campus for mechanical students. Going in other campus placement is good in CET followed by VSSUT than IGIT. But that doesn’t make a big difference. Placement is almost the same in these colleges for core companies.

About Mechanical Branch:

The mechanical branch is one of the most strict branches of the institute. 

• It has well-equipped labs or workshops and this is something mechanical engineers brag about.
• IGIT has more reputed and respected professors in mechanical engineering as compared to other colleges.

The quality of education is average.

It will be better if you opt for CET followed by VSSUT and then IGIT. CET/VSSUT does call mass recruiters as compared to IGIT. IT jobs play the role of saviors since the number of core jobs is quite less. and are not likely to get a boost in near future.

The students can get better placement in NIT Raipur. One will get good opportunities and exposure in the mining branch too. Moreover, the experience at NIT is far better than BIT DURG.

• The curriculum followed by BIT DURG and even NIT Raipur is outdated.
• The institute is at least 10 years behind the current industry practice as compared to NIT Raipur.
• At least 30 years behind if we compare it with the US or European schools.
• The industry clientele had taken leaps and bounds in terms of technology and what the students study is old-era theories that have little relevance in practice now. 
• Many industries hire graduates through campus interviews, 1st train them for 3 to 6 months to prepare the students as per industry requirements and update the knowledge.

The table shows a brief overview of the institutions:

So overall, if the students are into mechanical or mining, don't rely too much on what the book taught you, be aware of current trends and practices.

You are comparing two different engineering branches which are core and are perfect in their own place. Also, the selection of the branch should be primarily based on your interest and future plans. It is very important you choose a branch of your interest, as you will spend 4 years learning it. So, decide on the basis of your interest.

NIT Jamshedpur is much better than BIT Mesra in placements except CSE. CSE has slightly better placement in BIT Mesra than NIT Jamshedpur but then the gap is decreasing year by year. So, you can easily opt for the choice of field you want.

Let me give you some details regarding the future prospects in both of them:

Core Jobs:

• Both the branches have an equal number of core jobs and both mechanical and electrical engineers are needed at any manufacturing firm.
• So in this case, it primarily boils down to your inclination towards either of the two branches.

Non-Core Jobs:

• Electrical Engineers also have the opportunity to switch their career to software engineering without much difficulty.
• Mechanical Engineers generally don't have this Liberty.

Government Jobs:

• Mechanical Engineering has the highest no. of vacancies in PSUs and Engineering services.

Several core companies come to campus at Jamshedpur in TATA town, TATA Powers and TATA Motors pick many students for jobs as well as for internships. Now, this brings a great advantage for both Mechanical as well as Electrical branch students.

Talking about infrastructure, BIT Mesra has a more beautiful campus than NIT Jamshedpur. If you want facilities, you should go with BIT Mesra. But, placement wise NIT Jamshedpur is far ahead of BIT Mesra, which is again proving NIT Jamshedpur worth over bit Mesra.

Based on the above parameters, you can decide for yourself. Regarding the two colleges you mentioned, both are equally good and have roughly the same student quality. BIT Mesra has an edge in software profiles and NIT Jamshedpur in Core Engineering placements.

IIT Bhubaneswar is a new IIT and was established in the year 2008. On the other hand, IIT Dhanbad is an old IIT. Being an old IIT, the academic curriculum and academic flexibility are more functional at IIT Dhanbad than any other new IIT.

Many of my friends have passed out from IIT Dhanbad who were highly satisfied with their placement considering their JEE advance ranks. In the placement drive 2020, the highest package offered to the mechanical branch at IIT Dhanbad was INR 17 lakhs per annum. 

Changing your branch is comparatively easier at IIT Dhanbad. So, even if you are compromising on your branch of choice, you can get it altered to your choice once you join in.

To conclude, I would suggest you go for IIT Dhanbad.