Hello,

I suppose by CSE group you mean Computer Science and Engineering. For getting admission into B.tech Computer Science and Engineering from top colleges, you need to have Physics, Chemistry, Mathematics as your core subjects in class 12th. You also need to score an aggregate of 75% or above in all 5 subjects of your class 12th Board if you are aiming for Top Government Institutions like IITs, NITs. However, Some Private Institutions also accepts an aggregate of 60% in Physics, Chemistry and Maths of class 12th.

So, You have to pay attention to these three subjects - Physics, Chemistry and Mathematics.

Also all the engineering entrance exams have these three subjects in their paper where the syllabus is same as that of Class 11th and 12th.

For getting good colleges, practice MCQs of these three subjects. The more MCQs you practice the merrier. Build your accuracy and speed of question solving in these three subjects and you can easily get good colleges with CSE Group.

Click at this link to know more about Engineering Colleges offering Computer Science and Engineering degree in India - https://engineering.careers360.com/colleges/list-of-engineering-colleges-in-india

Hope this was helpful.