Engineering Entrance Exam

You need to have a rank under 3000 to get admission in this college.

Check out the official link below for details:
http://www.unigauge.com/

Get a rank under 3000 to get admission at the main campus of VIT.

I will suggest you to first strengthen your fundamentals as it is very important for your class 11th and 12th board and very well needed for the IIT exam. IIT exam is not a rocket science, you just need to be more dedicated to proper time management as you have to balance your 11th with IIT preparat

With the help of NCERT, you can score 40-50 marks but if you want to score more than that then you have to study other books like Engage, JD Lee, etc.

You need to get rank under 1000 - 1500 to get admission in any of IITs.

The major difference is-
IT deals with softwares whereas CS has both hardware and software.

NO, there is no other exam conducted except JEE Mains for admission but you can try out for college level counselling (CLC) in which students get admission on their 10th and 12th percentage.
Good luck.

I think you are eligible because I know about the last year’s condition of BSEB. I'm 97% sure that you are eligible. You can check the top 20 percentile list at the website of BSEB.

She should consult HC Verma and NCERT books.