BEST BOOKS FOR JEE MAIN 2019
NCERT: You should go through all the concepts and problems including miscellaneous problems. Practice previous year JEE Mains questions.
Mathematics Text Book for JEE Mains and Advanced: This includes 7 books by Arihant Publication, which includes, Algebra by Dr. SK Goyal, Vector and 3D Geometry by Amit M. Agarwal, Trigonometry by Amit M. Agarwal, Integral Calculus by Amit M. Agarwal, Coordinate geometry by Dr. SK Goyal, Differential Calculus by Amit M. Agarwal, Play With Graphs by Amit M. Agarwal. Practice questions from these books. It will be more than enough for your preparation.
For practice you can also use Coordinate Geometry by SL Loney, which is enough for this chapter. Many other books are available in market like, Objective Mathematics by RD Sharma, Differential Calculus by A Das Gupta etc. For mathematics rigorous practice is important. Stick to any of these books and practice more problems.
We must be through with the NCERT concept and problems. You can go through these books:
Concept of Physics Vol. 1 and 2 by HC Verma for more concept. Practice problems on HC Verma and Mechanics Vol. 1and 2. Electricity and Magnetism. Optics and Modern Physics, Waves and Thermodynamics by DC Pandey. For more concept based questions you can have Complete Physics for JEE main by I.E. Irodov. Any one of the above books are more than enough for JEE Mains preparation
The primary and most important thing in chemistry is to understand the concept of NCERT and Solve all the problems in NCERT. Then go for practice questions. Some of the books are, Inorganic Chemistry by OP Tandon, Organic Chemistry by OP Tandon and Dr. AK Virmani and Physical Chemistry by Dr. P Bahadur.Better stick on a book for solving problems and solve as many problems as you can. NCERT is must for every subject. Solving previous papers and taking mock test is very important for time management.