Raja Ram Mohan Roy founded Brahmo Sabha in 1828, which was later renamed as Brahmo Samaj.
Its chief aim was the worship of the eternal God. It was against priesthood, rituals and sacrifices.
It focused on prayers, meditation and reading of the scriptures. It believed in the unity of all religions.
It was the first intellectual reform movement in modern India. It led to the emergence of rationalism and enlightenment in India which indirectly contributed to the nationalist movement.
It was the forerunner of all social, religious and political movements of modern India. It split into two in 1866, namely Brahmo Samaj of India led by Keshub Chandra Sen and Adi Brahmo Samaj led by Debendranath Tagore.
Prominent Leaders: Debendranath Tagore, Keshub Chandra Sen, Pt. Sivnath Shastri, and Rabindranath Tagore.
Debendra Nath Tagor headed the Tattvabodhini Sabha (founded in 1839) which, along with its organ Tattvabodhini Patrika in Bengali, was devoted to the systematic study of India’s past with a rational outlook and to the propagation of Rammohan’s ideas.
Rammohan Roy progressive ideas met with strong opposition from orthodox elements like Raja Radhakant Deb who organised the Dharma Sabha to counter Brahmo Samaj propaganda.