Sakatayana was a Jain writer of the 9th century A.D.He lived during the reign of Rashtrakuta ruler Amoghavarsha. He was the founder of a new school. His main work was Sabdansusana.
Matsya was one of the sixteen Mahajanapadas mentioned in the Buddhist text Anguttara Nikaya. The founder of the kingdom of the Matsya was Virata. It consisted of the present-day Alwar, Jaipur and Bharatpur.