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.

I can attest to the fact that Engineering Physics at IIT Delhi and IIT Madras is the perfect blend of Physics and Electrical Engineering one could ask for.

You can opt for both physics as well as electrical courses as your electives. Your final year project can be in any one of these departments and you are free to choose provided that there is a good balance between science, mathematics, and engineering.

Most students of Electrical Physics eventually go for Electrical as you design your course instead of getting stuck on a mandatory curriculum.

At IIT Delhi, there is more focus on Physics than Electrical and for those interested in the same, this course is bliss.

When considering Engineering Physics, the choice of the institute is a secondary factor while your inclination towards Physics is the primary concern. The course is not for those who take it casually without genuine interest in it.

I think IIT Guwahati is a better institute for EP. Those who have a branch change of mind should take the batch strength into consideration as only 10% of the batch is allowed to opt out of EP.

Thus, unless you're certain of EP, I would recommend you go for BITS or top NITs. This will help you if you are looking for a core course.

The curriculum of Engineering Physics at both IIT Madras and IIT Delhi is equally instructional and well-structured. The demand for this discipline has witnessed a steady increase over the past few years. 

If I had to choose between IIT Delhi and IIT Madras, I would have opted for the latter. This is because

• IIT Delhi lacks in terms of technological instruments and its infrastructure is not on par with IIT Madras yet. 
• The hostel facilities are very substandard and the quality of food served in mess is pathetic in IIT Delhi
• The sports facilities are highly lacking and the infrastructure is also average
• There are illogical restrictions on the use of the Internet.

In my opinion, unless it’s a matter of locational preference, go for IIT Madras over IIT Delhi any day. You won’t be able to enjoy your college life to the fullest here.

It is difficult to determine which is better; Mechanical Engineering in IIT Hyderabad or Engineering Physics at IIT Roorkee without knowing what your expectations from the degree are and your personal preferences. Nevertheless, I am here to spill a few facts about EP at IIT Roorkee.

• Engineering Physics at IIT Roorkee is a multidisciplinary branch, with courses from Physics, Electrical, Electronics, Mathematics, and Chemistry departments.
• The courses included in the curriculum are quite demanding and can be really challenging for those who have little interest in Science
• Engineering Physics provided no core placements after completion of the BTech degree.
• Those who have an interest in a specific field of Physics can pursue research as it has great scope.
• You can also work as a scientist in DRDO or ISRO.
• You can also opt for fields like Artificial Intelligence, Quantum Computing, or Quantitative Finance where people with majors in CSE, Applied Maths, and Physics are preferred. 
• Software Engineering roles are also available for EP students although it is challenging to manage the academics along with programming. 

I would recommend you go for an easier branch that has less workload so that you can focus well on coding and get placed right after BTech in IIT.

All of the options you've mentioned are reputable institutions with strong programs in their respective fields. However, the best choice for you will depend on your individual interests, goals, and priorities.

• The branches CSE, Electronics, and MNC(Math and Computing) offer better job opportunities with higher packages in comparison to other branches. Thus if you are in desperate need of a job, these branches will serve you best.
• Mechanical Engineering is a branch best suited for those targeting a government job. This branch too has decent job opportunities considering the fact that India sets up more manufacturing sectors under Make in India initiative.
• Engineering Physics is a core branch that has little to offer in terms of exposure and opportunities. I won’t suggest you go for this unless you are extremely passionate about Physics. You can take it if you are planning a branch change if you want to clear UPSC CSE.

Lastly, my suggestion would be to target top NITs instead and not go for a mediocre branch. Additionally, you may want to reach out to current students or alumni of each institution to get a sense of their experiences.