Mahad Satyagraha was a Satyagraha led by Dr. B. R. Ambedkar on 20 March 1927 to allow untouchables to use water in a public tank in Mahad (currently in Raigad district), Maharashtra, India.
Brahmo samaj was started by Raja Ram Mohan Roy in 1828.It was open to members from all caste to worship Brahma.It denied the authority of vedas and does not permitted idol or image worship.It permitted worship only through prayers,meditation and readings from upanishads.