Best books for jee mains and advanced preperation to get under rank 100 ?

Dear Aspirant, here are some standard books which will help you in preparation of both Jee mains & advanced.

1.Physics - Concepts of Physics by H.C.Verma(Theory and numerical), IE Irodov (numerical), DC Pandey(numericals , this has questions for both Jee mains and advanced).

2.Maths - RD Sharma(Theory and numerical) , Cengage series(Theory and numerical).

3.Organic Chemistry -  Advanced problems in Organic chemistry by M.S Chouhan(for solving questions), O.P Tandon (for theory and quetions), NCERT for theory.

4.Inorganic Chemistry - NCERT (most important), concise inorganic chemistry by JD.lee(for questions as well as theory) .

5.Physical Chemistry - NCERT (for theory), RC Mukherjee physical chemistry (for questions), N.Avasthi ( Theory as well as Numericals).

Also there are various book which have previous year papers from last 40 years.Those will help too.

See , both Jee mains & advanced are national level exams and are highly competitive.So just books , infact no single book can guarantee a rank. Good rank in these exams is product of the long process and various factors, skills one needs to inculcate  throughout the 2 years journey.