The document discusses written sources as evidence for studying early Indian history. It focuses on analyzing and critiquing written sources, using Kautilya's Arthashastra as an example. The summary discusses the value of written sources for historians, challenges in studying early Indian history sources, and an overview of the document's two main parts: 1) analyzing written sources of early Indian history, and 2) using the Arthashastra as an example of exploiting a written source to study the Maurya period.