It covers the Economics part of the General Studies, Essay and Interview. Today, it plays a deciding role in selection—upto 50% questions in Prelims (GS Paper 1), over 60% questions in Mains (GS paper 3), invariably one essay besides numerous questions in Interview are asked from it. Closer analysis informs that over half of the 4 papers of GS in Mains is applied Economics—the reason why it is said, “Economics is the Gateway of GS”.