Does Nezha have three heads and six arms or eight arms?

Since the Song Dynasty, China has had the image of Nezha with three heads and six arms. "Jingde Chuan Leng Lu" contains a record of three heads and six arms holding up the sky and the earth, and Nezha striking at the emperor's bell in anger. As for why the Chinese changed Nezha from three heads and eight arms to three heads and six arms, it is actually simple. Chinese people like to use words like three sixty-nine, such as three aunts and six women, three classes and six houses, three religions and nine streams, etc. And one head with two hands is in line with Chinese common sense. As for why India has two extra hands, it is said that the two hands are used to join hands in salute.