“Are Hindus polytheistic or monotheistic?” 

This is a question I am often asked, particularly by my students. Typically, Hinduism is popularly perceived as being polytheistic (that is, worshipping more than one god). However, I think that is somewhat inaccurate. In fact, Hindus worship various expressions of the same god. Granted, many Hindus may not perceive this, but I think theologically it is accurate. There is almost always variance between core theology and the way people live out their theology. Some Hindus may align themselves as worshippers of Lord Krishna to such a measure they are not thinking of Brahma, the ultimate creator. This is where the disconnect is. At the top of Hinduism is the Trimurti, a trinity of sorts, consisting of Brahma (creator), Shiva (destroyer), and Vishnu (preserver). Thus, it comes down to one god. 

For more understanding of Hinduism, check out this helpful CNN article:

9 myths about Hinduism — debunked