1. Made easy publication - Engineering mathematics. This book alone is sufficient to prepare for GATE and ESE. For theory and additional practice, following reference books can be followed:
2. 1. N P Bali - Engineering mathematics vol. 1, 2&3
   2. B S Grewal - Higher engineering mathematics
   3. Erwin Kreyszig**- Advance engineering mathematics

   **  Good coverage of differential equations, laplace transform and other engineering mathematics topics. The language is simple and concepts are nicely explained. Don’t bother to look it up, if you are short on time.

Hello,

The best books for preparation of Mathematics is B.S. Grewal and H.K. Dass if you are looking to practice from Indian Author books however be extremely careful because these books contain a lot of printing errors and wrong solutions in some sections. If you want to prepare mathematics from a foreign author's book then follow Kreyszig. Also watch videos from Nptel on youtube where IIT professors give lectures. All the best for your GATE preparation.