_______ was founded by the Dadoba Pandurang and his brother Atmaram Pandurang in 1863 when Keshub Chandra Sen visited Maharashtra, with an aim to make people believe in one God and worship only one God.

Prarthana Samaj

The correct answer is Option 1- Prarthana Samaj

Prarthana Samaj (Prayer Society) was a socio-religious reform movement founded by Dadoba Pandurang and his brother Atmaram Pandurang in 1867. It was influenced by the Brahmo Samaj, a similar reform movement founded in Bengal by Raja Ram Mohan Roy.

The Prarthana Samaj was a monotheistic movement that rejected idol worship and caste discrimination. It also emphasized the importance of education and social reform. The movement was popular among the educated middle class in Maharashtra.

Keshub Chandra Sen, a leader of the Brahmo Samaj, visited Maharashtra in 1863 and had a significant influence on the development of the Prarthana Samaj. Sen's emphasis on social reform and education resonated with many Maharashtrians.

The Prarthana Samaj played an important role in the social and religious reform movement in India. It helped to promote education and social justice, and it challenged traditional Hindu beliefs and practices.