Well . The different colleges have their different syllabus. Maths, any computer language like c or c++, physics , english somewhere Beee etc it depends upon college.

I am from iit Bhubaneswar.so in our curriculum u will have following subjects.

1.maths 1&2

2.chem

3.phy

4. electrical technology

5. programming and data structure.

6. engineering graphics.

7.mechanics.

don't bother bro about subject books from now onwards.

enjoy holidays.

u can complete syllabus before last night of exam.

good luck.