Our choice should be dictated by the passion for the subject you are taking as your optional, and the comfort level because in the long term those are the factors that help you keep going during times of adversity. If you intended to restrict yourself to coaching notes only, no syllabus is truly vast,

Dealing with Ancient Indian History

Review official syllabus first and you will see the influence of various topics in exam point of view. History of India and Indian National Movements, Indian culture will cover the salient aspects of Art Forms, Literature and Architecture from ancient to modern times.

This is the basic introduction of Economics like what are the sources of economics, relative books, newspapers, magazines and what are the topics to be covered and the basic general approach etc. Economics is literally the toughest