The principal objective of the course, "Introduction to Econometrics", is to provide an elementary but comprehensive introduction to the art and science of econometrics. It enables students to see how economic theory, statistical and mathematical methods are combined in the analysis of economic data, with a purpose of giving empirical content to economic theories and verify or refute them. the course the first five chapters - introductory chapter, the simple classical regression models, and the multiple regression models are presented with a fairly detailed treatment.In the two of chapters i.e. on the chapters on 'Classical Linear Regression Models' , students are introduced with the basic logic, concepts, assumptions, estimation methods, and interpretations of the classical linear regression models and their applications in economic science.