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 Chemistry NCERT Text Book.
    Organic Chemistry Khan Academy Videos.

Mathematics

    Arihant Series  Dr. SK Goyal.
    Arihant Past Year AIEEE papers.
    VITEEE Solved Papers and Mock Tests from Arihant.
    RD Sharma  Objective Mathematics Part 1 and Part 2 (NCERT difficulty).