Christianity in West Bengal, India is a minority. According to the 2011 census, there were 658,618 Christians in West Bengal, or 0.72% of the population. Although Mother Teresa worked in Kolkata (Calcutta), Christianity is a minority in Kolkata as well. West Bengal has the highest number of Bengali Christians. Bengali Christians have been established since the 16th century with the advent of the Portuguese in Bengal. Later in the 19th and 20th centuries, many upper-class Bengalis converted to Christianity during the Bengali renaissance under British Rule, including Krishna Mohan Banerjee, Michael Madhusudan Dutt, Anil Kumar Gain, and Gnanendramohan Tagore.