This chapter introduces the concept of indefinite integrals as the inverse process of differentiation and forms the foundation of integral calculus. Students learn standard integrals, basic integration formulas, and the importance of the constant of integration. The chapter explains how to identify integrable functions and apply appropriate rules to evaluate integrals accurately.

Special focus is given to step-by-step problem-solving methods, simplifying expressions, and avoiding common mistakes. Through detailed examples and regular practice problems, students develop confidence and speed in solving integration-based questions. This chapter is essential for understanding advanced topics in calculus and plays a key role in scoring well in board examinations and competitive exams like EAMCET and JEE.