what is the role of religion in politics ?

Religion and politics are the two opposite banks of a river. Religion means values, ethics and culture while politics means power, rights, etc. As in India there are people of different religions, so the politicians take advantage of this and appeal to the public for vote on basis of caste. They emphasise, they belong to same caste and will do all work in favor of their religion and betterment of their culture.

Politicians in order to win the confidence of the public, take the support of their religion, they build temples, give donations to various social organizations on the name of caste and religion, give religion influential speeches, etc.