The term 'subaltern', oft- quoted in post-colonial theory, is, literally, referred to any person or group of inferior rank and station because of race, class, gender, sexual orientation, ethnicity or religion. However, the exact meaning of the term in current philosophical and critical usage is disputed. Mostly the thrust of subaltern is on the marginalized groups and the lower classes – a person rendered without agency by his or her social status. I have discussed subaltern in this sense in the works of Margaret Wilson which are based on her experiences in India as a missionary. The main thrust of the paper is colonial subalternity and its impact on the life of subjugated Indians under British Raj