Hinduism is said to be polytheistic, and hence there are more followers of Hinduism when compared globally.
In a general sense, Hinduism is polytheistic, but the scriptures like Bhagavadgita say that all Gods are but the different manifestations of the same One, the Paramatma or the Unitary Supersoul.
Hinduism developed from the Vedic religion, which was polytheistic.
The most... what? As of 2014, the religion with most followers worldwide is Christianity.
Islam is not a polytheistic religion, it is the belief in the one and only God. Most polytheistic religions like Buddhism and Hinduism are mostly in India and China. (or areas nearby)
Polytheistic
Hinduism is often considered to be a Polytheistic religion. A polytheistic religion is most often a religion that believes in a pantheon of different dieties responsible for different occurances.
Most religions are polytheistic, monotheistic, or particularistic. Some monotheistic religions are particularistic as are polytheistic. There are no religions that are all three.
Catholicism
Polytheistic; it was very much like the ancient Egyptian religion.
Polytheistic religion is the worship of many gods.
I think you mean "What religion has the most followers." In that case, the answer is Christianity.
Christian
it was polytheistic