Computers & IT (Non-Engg)

Dear,
Present age is the age of Information technology, where data communication is playing a huge role. If you are truly interested in computer and other NET working devices, their physical connectivity, and different protocols. You may think for hardware Networking course from a good Institute. Go ahead. Best wishes.

Well, there are numerous computer related courses but amongst them many require class 12th level Maths. For you, if you don't want to go in commerce field, instead are searching for computer and design development courses, I can suggest a few.
If you have a good interest and aptitude towards design, and have the capability of creating innovations, then you can go in the field of designing. As in, designing related to computers, like web and graphic designing, film and animation designing, computer aided design (CAD) and many more.

Yes, it's a great option and also, I would suggest you to go for certification courses. Talking about government jobs, you can get a government job in their cyber security departments.

Yes, please check the eligibility criteria of the university/institution. Different universities have different eligibility criteria.

In India, IIT-D is the best, followed by KGP.
Elsewhere in US the list according to their decreasing ranks are:
1 Georgia Institute of Technology
2 Carnegie Mellon University
3 Arizona State University
4 University of California, Santa Barbara
5 University of Maryland, College Park
6 Virginia Institute of Technology
7 Texas A&M University
8 Penn State University
9 The University of Texas, Austin
10 University of Wisconsin, Madison
In UK you can refer to these:
1. University of Sussex
2. University of Glasgow
3. University of Birmingham
4. University of Westminster
5. University of Greenwich
Regards.