In the Ancient India, the Gurus in Gurukulas taught their students about Vedas and Shastras, Shrutis and Smrutis, Upanishads and Puranas, 14 Vidya (techniques) Consist of 4 Ved : Rugved Samved Yajurved Atharvaved and 4 Upved : Arthashastra : An ancient Indian Hindu treatise on statecraft, economic policy and military ...