Kannuaj remained a focal point for the three powerful dynasties, namely the Gurjara Pratiharas, Palas and Rashtrakutas, between the 8th and 10th centuries. The conflict between the three dynasties has been referred to as the Tripartite struggle by many historians.
There were initial struggles but ultimately the Gurjar Pratihars succeeded in retaining the city. The Gurjar Pratihars ruled Malwa, which was bounded to the South by the Rashtrakuta Empire, and the Pala dynasty to the East. The Tripartite Struggle began with the defeat of Indrayudh at the hands of Gurjar Pratihar rulerVatsaraja. The Pala ruler Dharampala was also keen to establish his authority at Kannauj, giving rise to a struggle between Vatsaraja and Dharampala. Dharampalawas however defeated. Taking advantage of the chaos, the Rastrakuta ruler Dhruva surged northwards, defeated Vatsaraja, and took Kannauj for himself, completing the furthest northern expansion by a South Indian ruler.
When the Rashtrakuta ruler advanced back to south, Dharampala was left in control of Kannauj for some time. The struggle between the two northern dynasties continued: the Pala Chakrayudh was defeated by the Pratihara Nagabhata II, and Kannauj was again occupied by the Gurjar Pratihars. Dharampala tried to take control of Kannauj but was defeated badly at Moongher by theGurjar Pratihars. However, Nagabhata II was in turn soon defeated by the Rashtrakuta Govinda III, who had initiated a second northern surge. An inscription states that Chakrayudh and Dharampala invited Govinda III to war against the Gurjar Pratihars, butDharampala and Chakrayudh both submitted to the Govinda III, in order to win his sympathy. After this defeat Pratihara power degenarated for some time. After the death of Dharampala, Nagabhata II regained hold over Kannuaj and made it the capital of theGurjara Pratihara Empire. During this period the Rashtrakutas were facing some internal conflicts, and so they, as well as thePalas, did not
