Correct Option: D

The state of Assam derived its name from the word ‘Asom’ which means unequal or unrivalled. True to the meaning of its name, the state is unrivalled in terms of its natural beauty and the simplicity of the people. In the Mahabharata and the Puranas, Assam has been referred to as ‘Kamarupa’. The inhabitants of the state are a mixture of the Mongol-Aryan culture. The Ahoms ventured into Assam somewhere around 1228 A.D. The present name Assam derives from the name of a Sino-Tibetan tribe, the Ahoms, who came to Assam from China and Thailand, began
their rule from 1228 AD and remained a force to reck-on with in the political arena till 1828 AD.