Danava dynasty was the first legendary line of rulers in Pragjyotisha, established by Mahiranga Danava
The Danava dynasty consisted of Kirata chiefs; the last of whom, Ghatakasura, was killed and replaced by Naraka
Here are the lists of Asurs (Danavas) that ruled Pragjyotisha once
Mahiranga Danava
Mahiranga Danava was the earliest known king of Assam. He was a non-Aryan and had his capital at Mairanka, some 7 miles from Guwahati
Hatakasura
The last ruler of Danava dynasty was Ghatakasura and he was killed by Narakasura
Banasura
A mighty asura, Bana once ruled over a large kingdom. His influence was so strong and fierce that all the kings and even some of the devas shuddered in front of him
Sambarasura
Sambarasura is an asura featured in Hindu mythology. He abducted the infant Pradyumna, the son of Krishna and Rukmini, and attempted to drown him
Rantnasura
Ghatakasura
Bhagadatta (Mahabaharata period)
Bhagadatta was the son of Narakasura, and the king of Pragjyotisha in Hindu mythology. He was born from a limb of the asura called Bashkala
Narakasura
Naraka also known as Narakasura is an asura king in Hindu mythology. In Assamese tradition, he is regarded as the legendary progenitor of all three dynasties of Pragjyotisha-Kamarupa