Hii aspirants

let me clear your doubt.

You are very late as you have study anything yet. But yes you can overcome if you work very hard from now.

so first of all make a proper plan time table and give time to each subject.

Divide the chapter of every subject such that you can complete your syllabus till December.

Go through ncert books for physics, chemistry and maths.

If you have any doubts while studying you can watch online videos for clearing your doubt.

Solve all the numericals of ncert books and in maths solve all the exercise along with miscellaneous problem.

and when you complete these all till December.

From January to march revise all chapters, solve numerical and previous year question paper to know about question pattern also most of times few questions repeat. So solve previous year question paper and sample paper.

I hope my answer will help you out

Good luck