Ranade's Criticism of Hindu Religious Practices 

Though Ranade was a great admirer of Indian culture and religion, he was highly critical of some of the Hindu religious beliefs and practices. What he wanted was reformation of Hindu religion. Therefore, he did not advocate conversion or the establishment of a separate sect. He felt that the basic philosophy of Hindu religion was sound and what was needed was to rid Hinduism of corrupt and perverted practices that had crept into the religion over a period of time. video link

He was critical of polytheism that is worshipping of many gods. He believed in the existence of one God. According to him, Polytheism encouraged superstitious and corrupt practices. It also gave birth to idol worship. The temples of different gods became the centres of religious orthodoxy and vested interests. Idol worship strengthened the hands of the religious authorities and gave birth to the worst type of priestcraft. youtube link

Ranade wanted to purge Hindu religion of all its evil practices and for that purpose, he along with his friends established the Prarthana Samaj.  video link