IIT Delhi - Indian Institute of Technology Answered Questions

First of all congratulation for getting a decent rank in JEE Advanced.
Now you should decide which branch you want to pursue. If you are interested in civil then you should surely go for IITD. If interested in metallurgical branch, then go for IITB and if still wants to do mechanical, go for Roorkee.

CSE at DTU of course. DTU has a strong establishment. These new IITs don't compare with the likes of DTU, NSIT, old NITs, BITS Pilani, IIITH, etc. If you just want to go for the IIT tag then its your choice. But wise decision will be to go for above mentioned institutions. Going for newer IITs just for the sake of brand name is like buying Iphone 4 just for the sake of apple tag when you could have bought much advanced and better phone at the same price.

Apologies for the late reply! My preference will be: IIT-D &get; IIM-A or IIM-N. The reason being IIT-D is already a well-established brand and placements would not be a big issue there unlike these baby IIMs. I agree one cannot ignore the IIM tag, but there is still lot of time before these IIMs establish themselves properly(it's been only 2 years since their existence). You may contact the current students and alumni for more insights.

See, EP is a branch intended for those students with an inclination for physics and who plan to pursue it further by going for higher studies. B.Tech in EP has no value when it comes to core job opportunities right after college because there aren't any core jobs for EP undergraduates.
Among all IIT's, IITD is best for electrical engineering. They have the best faculty who have published some really good books in their subject which are now standardized for that course. Other than that they have the best research and placements are just amazing. Power and automation has a really good scope in near future which is expected to grow exponentially with time.
Rest is upto you.