The first known ruler of Assam was

Mahiranga Danava
Hatakasur
Sambarsur
None of these

The correct answer is D. None of these.

Mahiranga Danava, Hatakasur, and Sambarsur are all legendary figures who are said to have ruled Assam in ancient times. However, there is no historical evidence to support their existence. The first known ruler of Assam was Bhaskarvarman, who ruled in the 7th century CE.

Bhaskarvarman was a powerful king who expanded the kingdom of Assam and made it a major power in the region. He was also a patron of the arts and literature, and he is credited with building many temples and other monuments.

After Bhaskarvarman’s death, Assam was ruled by a series of kings and dynasties. The most notable of these was the Ahom dynasty, which ruled Assam from the 13th to the 19th centuries. The Ahoms were a powerful and warlike people who came from Tibet. They conquered Assam and ruled it for over 600 years.

The Ahoms were eventually overthrown by the British in the 19th century. Assam became a part of British India, and it remained so until India gained independence in 1947.

After independence, Assam became a state of the Indian Union. It is a beautiful and diverse state with a rich history and culture.