how to get sit in iit which book s prefer
Physics
Concepts of Physics Volume 1 & 2 (HC Verma)
Physics/Principles of Physics/Fundamentals of Physics (Resnick, Halliday, Krane/Walker)
Understanding Physics for JEE (DC Pandey)
Problems in General Physics (Igor E. Irodov)
Inorganic Chemistry
NCERT: For inorganic chemistry, NCERT is more than sufficient.
JD Lee:
Organic Chemistry
NCERT
Solomon's Fryhle/LG Wade/Morrison Boyd
LG Wades Organic book
Solomons
MS Chouhan
Mathematics
Arihant Skills In Mathematics series
Problems Plus IIT Mathematics by A Das Gupta
Higher Algebra by Hall and Knight
Plane Trigonometry by SL Loney
I hope this helps.