During this period some stone and copper plate inscriptions of the Ganga period clearly indicate that Odia language and script took a definite shape. As a result, during the reign of Kapilendradeva, the immediate successor of the Gangas, Sarala Das could write his magnus opus, Mahabharat in the language of the masses i.e. Odia.
The Ganga emperors maintained their rule over an extensive territory with the help of a powerful army. The Ganga rulers themselves were great warriors.
Narasimhadeva’s achievement as a builder was unparallel. The outstanding Sun temple at Konarka bears the testimony in the field of art, architecture and sculpture. Though the main temple has been ruined, Jagamohana (Porch) is still standing. The marvelous art, architecture and sculpture of the temple allure the attention of millions of tourists all over the world who visit the Sun temple of Konark.
The greatest achievement of Anangabhimadeva III as a conqueror was his victory over the Kalachuris. The Chatesvara inscription describes that Vishnu, the Brahmin minister of Anangabhimadeva III defeated the king of Tumanna on the bank of river Bhima at the skirts of the Vindhya hills and on the sea-shore.
In order to give stabilisation and consolidation to the vast empire, Chodagangadeva introduced a well organised administration. Being a foreigner to this alien land he could very well realise his duty towards the people of Odisha.
Narasimhadeva II ascended the throne with the death of Bhanudeva I in 1279 A.D. As he was a minor, Narahari Tirtha became his regent for long twelve years. During his time Tughril Khan-i-Yuzbak, the governor of Bengal fought with Balban, the Sultan of Delhi.