Explanation: In 1867, Keshab Chandra Sen helped Atmaram Pandurang found the Prarthana Samaj in Bombay. Earlier, the Brahmo ideas spread in Maharashtra.

• A precursor of the Prarthana Samaj was the Paramahansa Sabha, something like a secret society to spread liberal ideas and encourage the breakdown of caste and communal barriers.
• The samaj relied on education and persuasion and not on confrontation with Hindu orthodoxy.
• There was a four-point social agenda also: (i) disapproval of caste system, (ii) women’s education, (iii) widow remarriage, and (iv) rising the age of marriage for both males and females.
• Dhondo Keshav Karve and Vishnu Shastri were champions of social reform with Ranade.

Source: Spectrum Modern India