DTU - Delhi Technological University

Pursue it from DTU. DTU had good faculty for COE and will definitely make you land at you destination.

Computer Science. But if you ask me, I would say any branch in which you had interest. A environmental branch with good specialisation will fetch you more package than computer branch.

In dtu the environmental engineering is being taught with the ratio of three branches of engineering mainly machanical, civil and environmental in the ratio 2:2:2 . Only few colleges in India provide this degree and dtu being one of the best assures you a job , which is pretty much the final goal. Moreover if you want to go for further studies then dtu has it's down advantage .

Give JEE Mains exam. Get sufficient marks in JEE. Apply for JAC counselling, get admission.

It is absolutely true. Admission to above college is though JAC counselling and all above college had 85% state quota. By Delhi students, it basically means the one who had done class 12th from Delhi region.

The cutoff is basically decided though JAC counselling, but to give you a rough idea the cutoff is around 70k to get into DTU in the lowest branch possible if you are from general category Delhi. But, for outside Delhi the competition is more difficult. You have to work really hard to get a good branch being outside Delhi category. But, it becomes a bit easy, if you have reserved category quota. Life here is awesome.

You will have to apply for admission in DTU. The forms are usually out around April and keep an eye out for it. Try not get any backlogs and clear all the subjects.

Hello Kunal, for admission in DTU rank for SC candidates with no subcategory are here:-
Round-outside Delhi-NCR region
1. 28k-78k
2. 42k-90k
3. 42.5k-93k
4. 42.5k-94k
5. 42.5k-94k
6. 42.9k-94k.
Hope it helps.
Good luck!!
Upvote my answer.

No. You need to have Physics, Chemistry and Maths in your 12th or equivalent to be eligible for B.Tech in India.

Yes, it's there. It would be better if you do your 11th and 12th from a Delhi School. Your domicile could be outside but your schooling depicts the state you qualify for.
It will enhance your chances to be at DTU/NSIT in comparison to outside Delhi Schooling students.
Hope this helps you.
All the best for your bright future!