What features have enabled Hinduism to develop freely in many directions

The main feature that has led to its free development across the world is its leniency. It does not bound people by any means. This religion was not founded by any single person, and so it never needed any defending. Nobody put any limitations to its spreading among different people. It accepts all people with open arms. Hinduism is not following a single God as well. So following numerous Gods resulted in quicker spreading of the religion. This religion has absorbed the theme of worshipping several Gods without any discrimination.