Top engineering colleges like IIT Delhi, NSIT, School of Planning and Architecture, Delhi, College of Art, Delhi, and even the famous Faculty of Management Studies have branched out from DCE. Major differences between these Engineering institutes include

• Being the oldest, DTU has the largest alumni base ever more than NSIT and IIT Delhi.
• All three have different statuses; DTU in itself is a university, NSIT is under the umbrella of Delhi University while IIT Delhi is an institution affiliated with the central government.
• The companies visiting these institutes are similar in terms of roles and packages offered with DTU and IIT Delhi students getting offers from companies like McKinsey, Bain, etc. while NSIT students getting offers from Tech giants like Facebook, Google, and Microsoft.
• IITians enjoy the brand name that comes attached to their degrees. This brand name is superior to that of DCE.

Ultimately students prefer IITs over other engineering colleges mainly because they are government bodies and have earned global recognition.

For your information, the Agriculture Department of IIT Kharagpur itself is around 300 acres whereas the entire IIT Delhi is sightless less than 400 acres. The huge area of IIT KGP is definitely not a boon and might actually work against you. Moreover, it’s not a brainer that Electrical Engineering seems to be a better option than Agriculture Engineering unless you have an interest in the latter. NSUT itself is a pretty decent institute and is much in demand because of its central location. 

In short, I recommend you to join IIT Kharagpur (Agriculture) only under 2 circumstances,

• You are genuinely interested in the field and want it to pursue a career in the same
• You want to pursue higher studies in foreign studies. 

For this, the IIT tag will be much more useful than NSUT. The entire answer is based on my opinion only and not on any data.

The primary step even before deciding on the Institute is to determine which field, or branch appeals to you to the extent that you want to spend the rest of your life in that field. Once you have done that, the next step is to research which Institute specializes in that field.

• For Coding, Computer Science is the best
• For Automobiles, the Mechanical branch is the best
• For interest in electronic devices, the best branches for you are ECE and EEE are the best
• If you are interested in electrical things like motors, and power supply in house EE is the right branch for you.
• If building dams, bridges, and highways interests you, Civil Engineering is perfect for you

Lastly, I will suggest you go for IIT Delhi without much hesitation as it is a complete package, with the much coveted IIT tag, the best faculties, labs, and other amenities.

Placement-wise, IIT Bombay is clearly the winner, followed by IIT Delhi with IIIT Hyderabad and BITS Pilani almost similar 

Courses: Course-wise too, IIT Bombay wins the race accompanied by IIT Delhi, IIIT Hyderabad, and BITS Pilani subsequently.

International competitions: The order remains the same except BITS scores better than IIIT Hyderabad in this aspect.

Startup culture: The startup culture too is best at IIT Bombay, then IIT Delhi followed by BITS and Hyderabad.

\Alumni: IIT Bombay has the highest number of successful alumni across the globe after which stands IIT Delhi, BITS Pilani, and finally IIIT Hyderabad.

I don’t think it’s logical to compare extremely old and government-funded IITs with private institutes like BITS and IIIH. The alumni reach is also incomparable.

IT from NSIT is the best option among these. 

• The student crowd is brilliant. It has a small batch size compared to DTU. So, you will face less competition. 
• NSIT has an amazing pool of faculties. You will get to learn from excellent faculty members like Sangeeta Sabharwal and MPS Bhatia. 
• NSIT IT placements are better than DTU and IIIT D. DTU has a better placement record for core branches. While NSIT offers better placements opportunities to CS and IT students. In the recent placement drive, the average CTC for IT at NSIT was INR 6 LPA. 
• Companies like Facebook, Google hire students from NSIT from their US offices.
• Major consulting and non-tech companies like Bain, BCG, ZS Associates, etc. also visit the campus placements. 

IIIT Delhi has an excellent research culture and professors from top universities like Carnegie Mellon. So, if you are interested in research, you should choose IIIT D. Overall IT from NSIT is the best option in terms of academics and placements. 

NSIT/DTU is far better than NIT Hamirpur for CSE. 

Be it academics, placement, research culture, peer group, exposure, etc. NSIT/DTU will offer better opportunities. These two institutes also have a locational advantage. Due to the favorable location, you can easily get good exposure in the CSE domain. NSIT and DTU both will offer you plenty of opportunities. However, many students prefer NSIT for their small student intake. 

In terms of brand recognition and exposure, NSUT IT is better than PEC Chandigarh. Delhi offers way better exposure, due to the presence of the industry belt in the area. There are many reputed technological institutes in Delhi such as IIITD, so the learning opportunities are ample. 

CSE and IT aren’t too different. The major difference between the two branches is hardware and 90% of students are more invested in software roles. If you aren’t particularly interested in the hardware section of Computer Science, choosing NSUT will be better. NSUT placements are great for IT. Students of the branch get salary packages in the range of INR 4 - 20 LPA.