It's quite subjective to claim NSUT is the worst engineering college as it has churned out a few successful engineers too. The only people who find it below average and worst are those who couldn't make it to the prestigious institution despite being rich because it does accept any kind of bribes. I have many friends in the institute that say the college gave them wings to fly and discover their passions. So the people nitpicking on the colleges worth are the ones that did not utilize the available resources or took part in any kind of activity. 

Rather than criticizing an institute, I suggest it's better to take action and start working on yourself because you cannot change the institute but can change yourself drastically for the better. 

So, NSUT is definitely not the worst engineering college in Delhi as it has given wings to many engineering students who are pursuing successful careers today. best engineering college in India and almost a religion for many like me.

It’s hard to determine the worth and credibility of these institutes just by looking at official rankings. So I will be taking into consideration some criteria 

• Placements: The placement scenario and opportunities offered at all these institutes are equally good as similar companies visit for placements. Companies like Google and Facebook conduct an open test like APAC so students of all institutes get equal opportunities.
• Campus life: In terms of the campus and city life offered, my preference order would be DTU = NSIT > NIT. Being in Delhi, NSIT and DTU offer better opportunities and exposure. Delhi has it all, major corporate headquarters, the media, and top colleges like IIT-D and DU to compete with.
• Student pool: The peer group has a massive effect on you and helps you in determining your interests and activities and grooming your personality. The ranking of colleges depends solely on the type of crowd you are looking for. If you are from south India, you would prefer to join NIT- Trichy. So this aspect cannot be generalized at all.
• Campus: A dynamic college life is very important to break from occasional strenuous situations. In that aspect, NIT offers the best campus life followed by DTU and NSIT. 
• Faculty: The faculty pool is better at NIT than at NSIT and DTU. NIT is a central government institute and has a better recruitment process so filtration is better.
• Alumni: Alumni network plays a big role in your institute’s reputation in the corporate sector and can help you financially with your startup idea. That being said, DTU and NIT Trichy have the best alumni network followed by other NITs and NSITs. 

It’s best to go for the college that is best suitable for you alone and not just because it has good rankings.

One of my friends at NSUT Delhi shared a few unknown facts about the institute. He claims that the majority of the crowd is focused on getting placed and securing good marks rather than developing a genuine interest and passion in the curse. This makes the academic environment dull and unchallenging. Here are some other major drawbacks he faced during his time at NSUT Delhi

• The institute has a disinterested faculty pool that ruins the lives of many by illogical grading systems. They have no interest in teaching and students have to motivate themselves to study.
• NSUT Delhi does not only have an outdated curriculum but also has a number of irrelevant courses. This makes the students lose interest in the branch.
• It may have the DU tag but rarely do recruiters know about this. Its brand value is not at par with other DU-affiliated colleges.
• The placement scenario is pathetic and the institute releases not have much official data on the same. The exceptional cases of students getting placed in big companies like Google have nothing to do with the institute but the student's hard work. 
• Being a government college the administrative department is pathetic and laid back.
• The Institute does not enjoy much reputation outside Delhi and is even unknown to many.
• The campus is small around 140-150 acres and the infrastructure is in a pathetic state.
• The institute has a policy of 85% reservation for Delhites which limits the crowd diversity and your college experience as a whole.
• The college has a non-existent alumni network.

So, unless you have no other options it is better to not consider joining NSUT Delhi. You might end up ruining your career.

NSUT Delhi has churned out a number of successful alumni both in and outside India that have contributed to improving the brand image of the institute. A few that deserve a mention here are

The above list is not exhaustive and there are many more notable alumni of NSUT.

A college does not need advertisements for improving its brand value and worth. A good institute is recognizable by the quality of students and placements it offers. I feel NSUT being a prestigious institute already felt no need to advertise its placement stats and attract an unnecessary crowd. It believes in quality over quantity and thus takes in only the best. 

Institutes like DTU have to prove their worth and thus measures like advertising are undertaken. Earlier it was a central university college and now it has become an autonomous state university. Everyone was against this change so the institute deserve to preserve the brand value by publishing high-end advertisements.

So whether a college advertises its placement statistics or not depends on whether the institute needs to attract the public or the brand value is more than enough to attract the students.