Hinduism is practiced by today's Hindus in a way that is consistent with the advances made in science and technology although the theories and principles are the same as given in the past books of Hindu religion. Practice strides ahead of theories because conditions on the ground force change in practice even as the theories remain unaltered for decades. Hinduism today is a modern religion with freedom of both thought and action to its followers. This book gives an outline of modern form of Hindu religion and updates its philosophy. The opinions are those of the author alone.