Computer Science and Engineering

Try to get him in a good private college as he will not get any decent government college. All the best.

Yes, you can get B.Sc. Computer Science. You can apply into your state government colleges and private colleges across India.

Check out the college reviews below for details:
https://www.shiksha.com/college/techno-india-salt-lake-salt-lake-city-Kolkata-48911/reviews?course=254657

If you are interested in computer science, then you should apply for this stream, otherwise, don't. Because interest is the only thing which makes you perfect. And also, perfections come with interest.

Opt for the engineering branch that you love the most and are most passionate about and analyze the future work conditions, scope and growth prospects before taking admission.
You can also opt for a psychometric test comprising of Aptitude, personality and career interest to clear confusion.

Admission is based on the rank obtained in JEE Mains. For details, check the link below:
https://www.shiksha.com/b-tech/course/b-tech-in-computer-science-and-engineering-deenbandhu-chhotu-ram-university-of-science-and-technology-sonepat-116205

You can check out the link below for details:
https://www.shiksha.com/b-tech/resources/mhcet-college-predictor

Yes, you can. Admission is based through the university level counselling based on the rank obtained in Symbiosis Entrance Test (SET)/ Maharashtra Common Entrance Test (MHT-CET)/ JEE-Mains.
Details below:
https://www.shiksha.com/b-tech/course/b-tech-in-computer-science-and-engineering-symbiosis-inst