Yes, Dayananda Sagar College of Engineering is good for Mechanical Engineering. Be it faculty, labs, department, infrastructure, branch, or any other aspect, the college is a perfect fit. 

The only disadvantage of DSCE Bangalore is that it doesn't provide any offers from core companies. The students of the mechanical branch end up getting a job in the IT sector. If any core job offers are available, these companies will only hire students in single digit. 

Companies like Accenture, Cognizant, Infosys, and Tech Mahindra hire students irrespective of the branches.

If a job in the IT sector suits you after graduating from the mechanical branch, then you can opt for Dayanand Sagar College for Engineering as it is the best college. It will furnish a job but in the IT sector.

Surely, Metallurgy at PEC over Mechanical in UIET. There are various important reasons behind this: Placements in PEC are better, companies like Google, Amazon, Microsoft, etc. visit campus for placements.

Though metallurgy has fewer placements than other branches in PEC, once you are in PEC and if you are focused enough, you can go for an upgrade after 1st semester on the basis of CGPA. To aim for it, keep the following things in mind -

• At most, only the top 10% of the class can be upgraded.
• The branch you want to be upgraded to will only be available if it has vacant seats.

PEC is far superior to UIET in terms of cultural and other extracurricular activities. If you don't have any branch priorities, I'd recommend metallurgy in PEC.

UIT RGPV is good for Mechanical Engineering. However, things vary with each one of us.

If you want to prepare for higher studies like MS or competitive exams like the GATE or CAT, it is good because you will get a sufficient amount of time. If not, you will end up working in companies like TCS being graduated in Mechanical Engineering from UIT RGPV.

Check the following table for some brief statistics about UIT RGPV:

If you have better options you can opt accordingly. UIT is good for B. Tech in Mechanical Engineering you can pursue.

NIT Arunachal Pradesh is among the top 200 engineering colleges in the country according to the NIRF Ranking of 2020. Ujjain Engineering College is an AICTE approved autonomous institute. Listed below are a few aspects to analyze both institutes:

NIT Arunachal Pradesh, Biotechnology:

Admission-

• Students are accepted for admission based on the JEE Main score and the prerequisite for the program is at least 75% in 10+2 academics.

• The closing cut-off ranking for the biotechnology program at NIT Arunachal Pradesh was 44,563 in 2019.

• The first year fee of the course is 2.2 Lakhs. However, students can also avail scholarships and other fee waivers.

Placements-

• The highest and average salary of the students at this campus is 11.68 LPA and 4.2 LPA respectively.

• The companies visiting the campus for the placement drive are Wipro, Research laboratories, Pharmaceutical companies, Intel, Infosys, Hyundai, Havells, NOKIA, Polaris, Ashok Leyland, Yodlee, Asahi India Glass, and many more.

Ujjain Engineering College, Mechanical engineering:

Admission-

• Like NIT Arunachal Pradesh, Ujjain Engineering college also accepts students based on the intermediate and 10+2 marks.

• The final selection is based on the performance of the students in JEE Main.

• The closing cut-off ranking of the home state and other states for Mechanical Engineering in 2019 was 140822 and 123322 respectively.

• The fee for this course is 99,404.

Placements-

• The highest and average salaries received by the students are 10 LPA and 3.5 LPA respectively.

• The companies visiting the campus are Uttam Galva Steel, Wipro, Intel, Infosys, Lupin, Yash Technologies, BYJU’S, TCS, and many more.

Biotechnology and Mechanical Engineering are two completely different subjects. You should choose the subject you are more passionate about and the institute according to that.

As some of my friends studied at LNCT Bhopal, I can say that the mechanical engineering course offered by them is pretty good. 

• A course in Mechanical Engineering is considered to be among the most prestigious courses of a core branch that is offered by the institution. 
• Every year, several firms visit the campus of the institution to recruit skilled students with innovative ideas for various job profiles. 
• Many companies recruit students from all departments of the institution and not just the department of mechanical engineering. 
• The Institution’s training and placement cell put in efforts actively in assisting the students so that they can acquire a good job role at a reputable firm that hires students on-campus at LNCT. 
• It can be a great choice for you and the students who are looking out for quality education in their graduate programs or for career prospects and enhancement. 

The college campus has a pretty good infrastructure and is student-friendly. This in my opinion would work for the overall development of the enrolled students at the institute and in getting hired by reputed organizations. 

Mechanical Engineering is an evergreen branch and considering the placement rate of LNCT, which is 75-80%, it hardly provides any placements to the mechanical branch students. It means the mechanical branch students don't have the core placements. 

In the year 2020, there were 3-4 companies that came to the campus for the core placements and took a very less number of students. Therefore, there are very few placement opportunities for a mechanical branch student in LNCT Bhopal.

There are either no core placements or else the Institute will ask students to apply for the marketing companies and get a placement in that domain. 

But then, if a student is good with the skill set and has good abilities, prepare for the exams like GATE, ONGC. It will help him/her in the future.