I believe in an India of pluralism and diversity, not of religious bigotry and caste politics. I believe in an India that is secure in itself and confident of its place in the world, an India that is a proud example of tolerance, freedom and hope for the downtrodden.

This quote is saying that a person believes in India as a nation that is composed of many different beliefs and cultures, not only focusing on religion and caste (social class). This person believes India should be a place of security and optimism and demonstrate to the rest of the world acceptance, liberty, and provide hope to those who are disadvantaged.