- IIT Mathematics (M.L.Khanna)
- Co-ordinate geometry (S.L.Loney)
- Plane Trigonometry (S.L.Loney)
- Higher Algebra (Hall and Knight)
- Problems in Calculus of One Variable (I.A.Maron)
This books are the best for basic concepts. They really make your base strong.
For further reference, you can buy:-
- Skills in mathematics series books from arihant publishers – They are very good, given the present pattern of exam.
- Solve FIITJEE RSM modules and GMP (if possible).
- Mathematical Analysis (G.N.Berman) – if you find I.A.Maron difficult, then don’t buy this book.