Have the private engineering colleges destroyed the quality of engineers produced by them?

No. You can't define quality of students through their college. Quality depends upon the ability of students. One thing one must remember if he/she wants to do anything fruitful. That is- "To have faith in oneself, not on the composite things".

It's not true BITS Pilani, VIT Vellore is also a private college and is better than IIITs in terms of placements and academics.

Why do you think so? Infact, in terms of infrastructure, better facilities, and a lot more, private colleges are working towards making better and happier engineers who go beyond what the college has in store for them. One such college that exists is Thapar Institute of Engineering and Technology. T

Yes, it is true to some extent as lot of private colleges are there now a days, but not all the private colleges are bad, infact BITS Pilani is a private college which is ranked just below some of the Top IITs. Thapar University, PSG College of Technology, Jaypee Noida are some other good private en