To crack JEE exam make sure your concepts are clear. You can take help of NCERT books for that.
To crack any exam make sure you know about the exam like Syllabus, Important topics and exam pattern and for that you can go through previous year papers and mock test

COMEDK UGET is an online computer based test for the private colleges. you must prepare well for COMEDK to get a good score in the entrance exam.

You can refer below books -

Physics by BASE (author)

Chemistry by BASE (author)

Mathematics by BASE(author)

Or you can visit below given

hey,

Previous years question papers are very essential for cracking any exam.

You can get your previous years papers by following the link-

http://www.entranceindia.com/manipal-engineering-previous-year-question-papers-pdf-download/

not only previous years papers there are lot more stuff available for manipal entrance exam here.

You can refer to below recommended books for your preparation

Physics

    Arihant Series  DC Pandey
    Books on Mechanics  Part 1, Mechanics  Part 2, Waves and Thermodynamics, Electricity and Magnetism and Optics and Modern Physics.
    Concepts of Physics (both volumes) by HC Verma.
    MCQ Question Bank by D Mukherjee.

Chemistry

    Inorganic

Allen is good but first complete your NCERT first. After that, focus on sample papers and previous year papers and once these are done, you can consider reference preparation material. And for revision, you should give online mocks as much as you can. This will make you familiar with actual

In last days you should focus on revision.
You should do thorough revision of chapters based on their weightage in the exam.

You can follow below strategies

1- You should follow a time table which focuses on important chapters.
2- You should evaluate your strength for the exam.
3- Plan

To increase your score in JEE Main make sure you are thorough with your NCERT. You need to solve as many as practice papers as the exam is more about speed and accuracy, rather than in-depth knowledge.

Time- management depends on your preparation. You should manage your time according to