Which study material is the best for IIT JEE?
Careers360 offeres a complete package including your timetable and everything called the B.Tech Companion. I would believe that this is a really good start for your preparation. Also the NCERT books are to be taken very seriously.
B.Tech Companion - Guiding you in B.Tech planning and right college selection
The best study material for IIT JEE is provided by FIITJEE and resonance Institute in Kota Rajsthan.