Correct Option: A

Narasimhavarman-I, son of Mahendravarman-I, was a Tamil king of the Pallava dynasty who ruled South India from 630–668 A.D. He avenged his father's defeat at the hands of the Chalukya king, Pulakesin II in the year 642 CE. Narasimhavarman was also known as Mamallan (great wrestler) and Mamallapuram (Mahabalipuram) was named after him. It was during his reign that the Chinese traveller Hieun Tsang visited Kanchipuram.