around 31 BC the tribes of Bhaagra were united and they created the first kingdom - Garat'hag . the first king of Garat'hag was King Khushiavatri . But some tribes of Bhaagra still were independent . they lived near river Ganama and Kohi . the Garat'hag was near river Ganama . Tribes of Kohi travelled to the Kohila penisula and tribes of Ashurat'hi travelled on the shore of the Aat'har sea , near rivers Mat'hira , Jugda and Dwari .