Is Hinduism a Religion ?

Truly speaking, when we talk of Hinduism, we do not know whether we are talking about a religion, or a group of religions, or a group of beliefs and traditions, some of which are diametrically opposed to each other. This some times gives rise to the argument that Hinduism cannot be considered as a religion in the strictest sense of the word, but as a complex theology that incorporates into itself many religious thoughts, practices, doctrines and world views.