Thomas Herbert Lewin. popularly known as Captain Lewin, was an enterprising English explorer who made a detailed study of the life, culture and the socio-anthropological aspects of the hill tribes dwelling in the frontiers of Bengal and Assam. Born on April 1. 1839, in London, he attended the Addiscombie Military College. In 1857. he was sent to India as a lieutenant at a time when the East India Company was engaged in military campaigns to suppress the Sepoy Mutiny. In the subsequent years, he worked at different places in East Bengal before becoming the Commissioner and Political Agent of the CHT.

The exact date of his arrival in Chittagong is February 11. 1866. Captain Lewin spent the next nine years with the tribes of the CHT, undertaking- among several campaigns a successful expedition against the Lushais (Mizos) whom he later on pacified.

Captain Lewin died at Abinger, near Dorking, Surrey, in 1916.