Mathematics:
Reference Books: For understanding doubts
Ø Vector, By Shanti Narayan
Ø Calculus, By J. Edward
Text Books: For solving problems and understanding basics
Ø Co-ordinate Geometry, By S. L. Loney (Its conic section is very nice. Sometimes even the problem in the Mains is directly from this book. This happened with me.)
Ø Higher Algebra, By Hall & Knight (Complex Number, Series & Sequence of this book is very nice.)
Ø Plane Trigonometry Part I, By S. L. Loney
Ø Problems in Calculus of One Variable, By I.A. Maron (Very nice book, one must solve function, Limit & Continuity, Differential, Integral & Definite Integral of this book.)
Ø Mathematics, By Tata Macgraw Hill (TMH)
Ø Vectors & 3-D Geometry, By Arihant Prakashan
Chemistry
Physical Chemistry:
Reference Books: For understanding doubts
Ø General Chemistry, By Ebbing
Ø University Chemistry, By Bruce H. Mahan
Ø Physical Chemistry, By P.W. Atkins
Text Books: For solving problems and understanding basics
Ø Physical Chemistry, By P. Bahadur (For reading theory)
Ø Numerical Chemistry, By R.C. Mukhrjee (One must solve all the numerical problems of R.C. Mukhrjee, It's worked out examples are very good.)
Inorganic Chemistry:
Text Books: For solving problems and understanding basics
Ø NCERT, Chemistry XI & XII
Ø Inorganic Chemistry, By Arihant Prakashan
Reference Books: For understanding doubts
Ø Concise Inorganic Chemistry, By J.D. Lee
Organic Chemistry:
Text Books: For solving problems and understanding basics
Ø Organic Chemistry, By Arihant Prakashan (One has to be careful as it contains several errors. But very nice book, all the topics are given in a nice sequence.)
Reference Books: For understanding doubts
Ø Organic Chemistry, By Solomons (I would strongly recommend this book. All the fundamentals of reaction mechanisms are well emphasized. You don't need any tutor if you have this book.)
Ø Organic Chemistry, By Morrison & Boyd
Ø Organic Chemistry Volume 1, By
Physics:
Reference Books: For understanding doubts
Ø Fundamentals of Physics, By Halliday, Resnick & Walker
Ø The Feynman Lectures on Physics Volume 1 & Volume 2, By R.P. Feynman (Very nice book, all the fundamentals are well emphasized.)
Text Books: For solving problems and understanding basics
Ø Concept of Physics Volume 1 & Volume 2, By H C Verma
Ø Problems in General Physics, By I.E. Irodov (For selected problems)