The Kalachuris of Sarayupara (c.650 - c.1080) were a medieval Indian dynasty who ruled along the banks of the Sarayu (modern Ghaghara) river in present-day Eastern Uttar Pradesh.
[4] One such branch of the Kalachuris started ruling on the banks of the Sarayu (modern Ghaghara) river from the Seventh-century CE.
[8] Rajputra is the first known king of the dynasty, who defended his kingdom from an attack by the powerful Pala ruler Dharmapala.
In 1031 CE, Vyasa, a son of a previous ruler Gunasagara II, was made the king of Sarayupara.
The kingdom reached its peak under Sondhadeva, the last known ruler of the dynasty, who was ruling in 1079 CE and took the title of Maharajadhiraja.