Kautilya was an Indian philosopher who lived from 350-275 BC. He served as the chief minister of Chandragupta Maurya and helped him establish the Mauryan Empire. Kautilya is renowned for writing the ancient Indian treatise on statecraft and economic policy called the Arthashastra. The Arthashastra covers various topics including public administration, law and order, economics and international relations. Some of Kautilya's key theories included reducing the role of the king to serving the people, using punishment to ensure security, and advocating for a council of ministers to advise the king.