- The Brahmo Marriage Act of 1872 was crucial for legalizing Brahmo marriages and related social reforms like inter-caste marriage and widow remarriage. - The Cooch Behar marriage of Keshub Chandra Sen's minor daughter caused a major schism in the Brahmo Samaj. - The break-away group formed the Sadharan Brahmo Samaj. - Brahmo Samaj remained largely an elite movement, not a mass movement.