This document provides an introduction to and overview of engineering mathematics for the GATE exam. It aims to give GATE aspirants basic knowledge of topics like linear algebra, calculus, differential equations, and probability and statistics. The author advises students to review the syllabus and previous questions for their specific paper to understand what depth of topics is required. The book contains solved problems from past papers of popular branches but is still a work in progress. Readers are asked to provide feedback to the author.