Ganesha (IAST: Gaṇeśa;), or Ganesh is one of the best-known and most worshipped deities in the Hindu pantheon. Ganesha appeared in his classic form as a clearly-recognizable deity with well-defined iconographic attributes in the early 4th to 5th centuries CE. He is readily identified by his elephant head and a human body. Ganesha's protruding belly appears as a distinctive attribute in his earliest statuary, which dates to the Gupta period (4th to 6th centuries).The number of Ganesha's arms varies; his best-known forms have between two and sixteen arms. The serpent is a common feature in Ganesha iconography and appears in many forms. Other depictions of snakes include use as a sacred thread (IAST: yajñyopavīta) wrapped around the stomach as a belt, held in a hand, coiled at the ankles, or as a throne. Upon Ganesha's forehead may be a third eye or the sectarian mark (IAST: tilaka), which consists of three horizontal lines or a crescent moon on the forehead. Ganesha is often shown riding on or attended by a mouse, shrew or rat. The rat began to appear as the principal vehicle in sculptures of Ganesha in central and western India during the 7th century; the rat was always placed close to his feet.
He is widely revered, more specifically, as the remover of obstacles; the patron of arts and sciences; and the deva of intellect and wisdom. As the god of beginnings, he is honoured at the start of rites and ceremonies.
Representations of Ganesha show wide variations and distinct patterns changing over time. He may be portrayed standing, dancing, heroically taking action against demons, playing with his family as a boy, or sitting down on an elevated seat, or engaging in a range of contemporary situations.
https://en.wikipedia.org/wiki/Ganesha