Both are the decent colleges. As per the analyzing report of Careers360 DIT Dehradun & Chandigarh University both have AAA+ rating which means good. The rating is based on the research of the colleges on various parameter on placement, Faculty, Industry Exposure etc.

You can also check the genuine reviews of the colleges with the given below links.

https://engineering.careers360.com/colleges/chandigarh-university-chandigarh

https://engineering.careers360.com/colleges/dit-university-dehradun

Good Luck!