The story of Lord Muruga is described in Skanda Purana. According to the legend, in the olden days, the demon Soorapadman tortured the Devas, who went to complain to Lord Vishnu and Brahma. They assigned Kamadeva to awake Lord Shiva from his penance, who later gave birth to Kartikeya. Karthikeya killed Soorapadman and saved the devas. Muruga is depicted as the god of love and war. Kartikeya married Valli by love and married Deivayanai by winning the war held at Tiruchendur. Kaumaram is the sub-sect of Hinduism in which Kartikeya is worshipped as the supreme deity.
In Tamil literature, five types of lands are explained. They are Kurinji (mountainous region), Mullai (forest region), Marutham (agricultural region), Neithal (coastal region) and Palai (desert region). Separate gods for these land types are clearly told in Sangam literature. According to the literature, Lord Muruga is the god of the mountainous region.