Anga kingdom in the context of "Kalinga (Mahabharata)"

Kalinga is a kingdom described in the legendary Indian text Mahabharata. They were a warrior clan who settled in and around the historical Kalinga region, present-day Odisha and northern parts of Andhra Pradesh. According to some scholars, the Kalinga janapada originally comprised the area covered by the Puri and Ganjam districts. Janapada state in ancient India. Bhāratīya Vidyā Prakāśana. p. 78.

Kalinga clan warriors sided with Duryodhana in the Kurukshetra War due to matrimonial and harmony alliances between both kingdoms of Kalinga & Kuru existing even before the Great War of Mahabharata was to happen. Kalinga is the founders of five eastern kingdoms, which included: Angas (east, central Bihar), Vangas (southern West Bengal and Bangladesh), Udra (Odisha, East Madhya Pradesh and South Jharkhand), Pundras (western Bangladesh and West Bengal, India), Suhmas (north-western Bangladesh and West Bengal) shared common ancestry. Two capitals (Dantapura and Rajapura) of Kalinga were mentioned in Mahabharata. It is likely that there were many Kalinga kings, ruling different territories of Kalinga, with many migrated outside to form new kingdom.