
They were also referred to as Katachuris (shape of a sharp knife), Kalanjarapuravaradhisvara (Lord of Kalanjara) and Haihaya (Heheya).
This name Haihaya is supposed to be derived from haya (a horse). Other theories are,
- A prince of the Lunar race, and great-grandson of Yadu.
- A race or tribe of people to whom a Scythian origin has been ascribed. The Vishnu Purana represents them as descendants of Haihaya of the Yadu race, but they are generally associated with borderers and outlying tribes.
- In the Vayu and other Puranas, five great divisions of the tribe are named as Talajanghas,
Vitihotras, Avantis, Tundikeras, Jatas, or rather Sujatas.
- They conquered Bahu or Bahuka, a descendant of King Harish Chandra, and were in their turn conquered, along with many other barbarian tribes, by King Sagara, son of Bahu. According to the Mahabharata, they were descended from Saryati, a son of Manu. They made incursions into the Doab, and they took the city of Kasi (Benares), which had been fortified against them by King Divo Dasa; but the grandson of this king Pratardana by name, destroyed the Haihayas, and re-established the kingdom of Kasi. Kaartaveerya-arjuna, of a thousand arms, was king of the Haihayas, and he was defeated and had his arms cut off by Parasurama.
Kalachuri Dynasty



Northern Dynasty
Some historians identify several Kalachuri ruling families in Tripuri, Gorakhpur, Ratnapur, Rajpur (eastern Gujarat) regions of central India. They established their kingdom in Madhya Pradesh with their capital at Tripuri near Jabalpur. Kokalla I was the founder of the dynasty. The Chedis had to face the rulers of Kannauj and Malwa, the Chalukyas and Rashtrakutas. They also had to defend their territory against the Palas and rulers of Kalinga. One of the most important rulers of Kalachuri dynasty was Gangeya Deva. He tried to make the Chedis the paramount power of Northern India. He was succeeded by his son Karan Deva.
Second dynasty
After the decline of the Gurjara-Pratiharas, Laksm Karna (1041–1072) of Kalachuri dynasty of Tripuri, who came to power, brought under his control almost the entire region covered by the present district of Gorakhpur District|Gorakhpur. But his son and successor Yash Karna (1073–1120), was unable to check the process of disintegration. The Kahla inscription indicates that Sodha Deva, a feudatory of another branch of Kalachuri dynasty, had proclaimed his independence in a portion of Gorakhpur district. During the same period the Kalachuri rule was supplanted by that of the Gahadvalas of Kannauj over this region. According to epigraphic evidence the kingdom of Govind Chandra (1114–1154) of the Gahadvala dynasty extended to Bihar including the area now comprising Gorakhpur. Two inscriptions ascribed to Govind Chandra have also been found one each at Magdiha (Gagha) and Dhuriapar in Bansgaon Tehsil mentioning the genealogy of the Gahadvalas and the charity given by him for the prosperity of his family. A number of mounds of bricks, ruins and masonry wells found at these places go to establish their antiquity.
The defeat of Jaya Chandra (1170–1194) grandson of Govind Chandra, at the hands of Shihab-uddin Ghuri in 1194, paralyzed the Gahadvala power and brought to an end their dominance over the district. As a result a number of small principalities held by Sarnet, Donwar, Kaushik Rajputs and Bhars came into existence in different parts of the district.