I will recommend you opt for Engineering Physics only if

• You have a great interest in physics and want to conduct research or pursue higher studies in it like a Master, Ph.D., and Postdoc
• Do you want an IIT tag to target different things like UPSC, Banking, etc

A few points one needs to know regarding Engineering Physics

• No job opportunities for UG students in the core Physics Department of top Indian government research organizations.
• Companies like DRDO, ISRO, and BARC offer core jobs to MTech students only
• The usual trend is to opt for Engineering Physics and then go for Masters and Ph.D.
• Students of the Engineering physics department can opt for a minor degree from another department like CS by attaining a certain limit of credits. Nevertheless, he will be considered a physics graduate and not CS.

IIT Ropar despite being a new IIT offers decent opportunities in terms of higher studies as well as job opportunities. He can work with top research organizations like ISRO and BARC or even work at reputed firms.

Concludingly, IIT Delhi is a good choice if your primary interest is physics and higher studies. If you are looking for a high-paying CA-related job, then IIT Ropar is for you.