(a) To reform society, it was important to first reform religion. He propagated the following religious ideas based on rationalism and the philosophy of the Vedas. 

1. There is only one God who is the creator and preserver of the universe. 

2. All men are children of the one god of all human beings and therefore equal. 

3. It was not necessary to worship idols and perform rituals and sacrifices. God could be reached through prayer and devotion. 

Raja Ram Mohan Roy condemned the domination of the priests who were responsible for misleading the people and perpetuating ritualism and socio-religious practices like sati. He published Bengali translations of the Vedas and the Upanishads to prove that all the ancient religious texts preached monotheism. 

(b) The Brahmo Samaj launched a relentless struggle against the following evil social practices: 

1. Sati Practice 

2. Caste distinctions and untouchability 

3. Child Marriage 

4. Poloygamy

The Brahmo Samaj supported: 

1. Education of women 

2. Widow remarriage 

(c) Raja Mohan Roy was a great champion of Modem Western education. He believed it would serve as an instrument for the spread of progressive ideas and accelerate the pace of social change. He believed that the salvation of India lay in adopting western principles of reason and humanism and acquiring the knowledge of Modem science.