One of my friends studied in the PSG Mechanical branch. In his opinion, both the colleges are well known and quite famous for Mechanical Engineering. Let me state some facts about them which might help you decide.

• NIT Trichy holds a certain advantage over PSG. 
• It is considered one of the top 5 NITs. It has earned recognition not only in India but also globally.
• In NIT Trichy you will get much more opportunities and the proper exposure. 
• PSG is not bad but while comparing it with NIT Trichy, it gets more leverage. 
• In PSJ the faculty members are really good in their respective fields. 
• In PSG students mostly like to learn their subjects by themselves and are independent of the teachers. 
• NIT Trichy has all the things required for such a core branch, like Good faculty members, excellent academics, internships, connection with industries, placement statistics, etc. 
• All this makes NIT Trichy a better option for Mechanical Engineering.

NIT Trichy develops your physical as well as holistic personality. It makes you confident with all the extracurricular activities it has to offer. Nit Trichy would be better overall and will definitely help you grow as an individual.

The Department of Mechanical Engineering at Haldia Institute of Technology has established a nice reputation for itself over the past few years. 

• The professors and other members of the faculty for the mechanical engineering department are experienced. 
• The department also has good facilities for the laboratories. 
• The teaching methodologies are considered to be above average by a majority of students enrolled in mechanical engineering courses. 
• The only shortcoming of Mechanical Engineering at Haldia is on-campus placement drives. Very few core companies visit the campus to recruit students almost every year. 
• In case you want to be recruited by a reputed core company after graduation then you must maintain a good academic record from the first semester itself. 

Following table is a brief description of the course:

Some rules for the recruitment drives have been established according to which only the top students based on their CGPA score would be eligible to appear for the selection rounds of core companies. These rules to shortlist the top candidates are usually set up by the corporations visiting the campus for recruitment of students. The options for off-campus recruitment would always be available for you. You can always prepare and apply for job roles via off-campus recruitment of core companies. 

Yes, it was confusing once, two years ago and now I can happily confess that I do not regret choosing IIT Gandhinagar over BITS-Pilani. Since I also have friends in both the colleges, I can provide a detailed overview of the good and bad aspects of the colleges.

Also, information on BITS might be limited due to it will depend mostly on other people’s experiences, but the answer will talk about the good and bad side of Mechanical Engineering at IIT Gandhinagar. 

Following are the merits of IIT Gandhinagar:

1. Limited batch- The class consists of 30 students. This makes the interaction simple and competition healthy. The classes are interesting and interactive. And BITS here, has a classroom filled with 100 students. 
2. Friendly professors- All the professors are cooperative. They will always be present to help you. 
3. Constant branch parties/meetings- The Mechanical Branch will always witness regular meetings wherein the latest course will be the topic of discussion and how things can be done to modify it and gather suggestions accordingly. These meetings include Mechanical Engineering students (no freshers) and professors. 
4. New course- In case 10 others from your branch decide to go for an entirely new course which isn't taught in the department- you can always consult the professors and if they can teach that, your will certainly be granted. 
5. Lab facilities- Your lab experiences would be such that you'd work under time-limits. Objectives that will be given to you would have to be completed under a time-limit present along with it. 
6. Inter-disciplinary ideas- Unlike the rest of the colleges, IIT Gandhinagar has neighbours who are from a background of MSE and CSE. While sharing ideas, you get to learn much more than you can imagine.

One thing that students could miss at IIT Gandhinagar is the cultural fests and events. They don't have grand cultural fests of their own. This privilege was taken away by the seniors, which we were trying to rectify. But gratefully, we already have enough, so, that doesn't make us expect too much of these grand fests for ourselves.