The present talk by Nilesh Oak discusses the ancient Nyaya shastra, principles of Vada Vivada (discussion), all 16 elements including reasoning, aim and resolution of any discussion. He also talks about how the kutark (reasoning without proof) and Vitanda (perverse and frivolous arguments) can mislead a discussion. The speaker very aptly explains these principles with examples from his research related to dating of Ramayana and Mahabharata on the basis of astronomical evidences.