Monotheistic or polytheistic

Within the Vedas it is clear that reference to truth is one, and this truth to man is seen in different ways.
Ishwar (God) is formless, and giving Iswar a ‘form’ in order to focus ones Bhakti (devotion) allows channeling of mans’ thoughts.

Brahma – The Creator
Vishnu – The Preserver
Maheshwara – The Destroyer

Hindus beieve in many deitis, such as Ram & Krisna, that relate to a part of life and it’s process, but these should not be confused with the supreme Ishwar.