Henry Vivian Derozio was a teacher at Hindu College at Calcutta, who promoted radical ideas and encouraged his students to question authority as well as the orthodoxy of religious institutions.
His students, calling themselves Derozians, started a movement called Young Bengal which called for the reformation of Hindu society.
For further reading check the following articles:
- 19th Century Social and Religious Reforms Movements in India
- Revision Made Easy: Socio-Religious Reform Movements UPSC
- Indian Education System During British Rule