for jee main+advance which books 'PCM' best for mi to learn and study for those compitative exam!in easy language....!!!

Firstly I would suggest you to go through well with NCERT books it will help you to build your concept clear. Then other books you can prefer:

Books for Physics :

Understanding Physics for JEE Main and Advance Series by D.C Pandey

OBJECTIVE/NUMERICALS Physics Books

• Problems in General Physics (Latest Edition) by I.E. Irodov
• New Pattern Physics: A Master Practice Book for JEE Main and Advanced By D.C Pandey

Books for Mathematics :

• IIT Mathematics For JEE (Main & Advanced) (Set Of 2 Volumes) by M.L Khanna
• New Pattern JEE Mathematics of Arihant Publications by Dr SK Goyal

Books for Chemistry:

• Physical Chemistry for JEE Main & Advanced 2017 BY Wiley Editorial Team
• New Pattern IIT JEE Chemistry By R.K Gupta
• DINESH Objective Chemistry for Engineering Competitive Exams

Good Luck!

The NCERT standard books used in CBSE board is a preferred choice for IIT JEE. They contain the right amount of information in an easy way to understand. This is why you should definitely read your NCERT textbook before you go for more advanced, difficult textbooks. Apart from this, you can consider below reference books as well -

Physics - HC Verma – Concepts of Physics (Part I) HC Verma – Concepts of Physics (Part II) IIT JEE Physics – DC Pandey Problems in General Physics – I.E. Irodov Physics for IIT-JEE – Resnick, Halliday, Walker. Problems in Physics – S.S. Krotov.

Chemistry - Organic Chemistry – Morrison Boyd Organic Chemistry – O.P Tandon. Modern Approach to Chemical Calculations – R.C. Mukherjee Numerical Chemistry – P. Bahadur Concise Inorganic Chemistry – J.D. Lee

Mathematics - IIT Mathematics – M.L. Khanna Differential Calculus – A Das Gupta Class XI & XII Mathematics – R.D. Sharma. Trigonometry, Geometry Books – S.L. Loney. Problems in Calculus of One Variable – I.A. Maron Higher Algebra- Hall and Knight.

Hope this helps!!!