Yaudheya Tribal republic of Punjab (200 BC - 400 AD.)

Yaudheya or Yaudheya Gana was an ancient tribal confederation who lived in the area between the Indus river and the Ganges river. They find mention in Pāṇini's Ashtadhyayi and Ganapatha .They were in zenith of their power from about 200 BCE to 400 CE.The Yaudheya republic had been a reasonably powerful state since the days of Alexander. (The frontier of their state was actually where Alexander turned back.) In the 3rd and 4th centuries they had a renaissance of sorts, but seem to have disappeared in the middle of the 4th century as the Guptas rose to power to their east.