This document provides an overview of prehistoric India, beginning with a definition of history and its division into prehistory, protohistory, and history based on the development of writing. It then discusses the Stone Ages (Paleolithic, Mesolithic, Neolithic) and Chalcolithic periods in India based on tool technology. Key details include the types of tools and materials used in each period, as well as significant archaeological sites that provide information about prehistoric life and culture in India. Non-literary and literary sources that help reconstruct ancient Indian history are also summarized.