See for BTech/BE one need to have Physics, Chemistry and Mathematics in your 10+2 and you must secure at least 50% marks in your 10+2 in order to be eligible for BE/BTech course. Now in some examination the marks eligibility changes so you should try to secure the best marks as you can depending on your targetted entrance.

To know more about BE/BTECH IT visit the link below:

https://www.careers360.com/courses/information-technology-course

I hope this answer helps. All the very best for your future endeavors!