Keshav Chandra Sen was the leader of the Brahmo Samaj during the absence of Debendranath Tagore. He started Bamabodhini Patrika, a journal of women. He launched radical reforms, such a giving up of caste names, inter-castes and widow remarriages and launched movement against child marriages. These radical reforms led to the first schism in the Brahmo Samaj.
The original Brahmo Samaj came to be known as Adi Brahmo Samaj and the other, the Brahmo Samaj of India which was established by Keshav Chandra Sen in 1866. Sen formed The Indian Reform Association in 1870, which persuaded the British government to enact the Native Marriage Act of 1872 (popularly known as Civil Marriage Act) legalising the Brahmo marriages and fixing the minimum marriageable age for boys and girls.
