Age of the Nandas and Mauryas c12.s13.t5.5

c12.s13.t5.5

That philosophical debate and systematic investigation of subjects had advanced in this period is borne out by the thirty-two topics of methodology in the exposition of a system of thought, called Tantrayuktis, which Kauṭilya enumerates, defines and illustrates at the end of his work, and most of which became later part of the Nyāya system of Akshapāda.