Indra (Sanskrit: इन्द्र) is an ancient Vedic deity, a deity in Hinduism, a guardian deity in Buddhism, and the king of the highest heaven called Saudharmakalpa in Jainism. In Vedas, Indra is the king of Svarga (Heaven) and the Devas. He is the god of the heavens, lightning, thunder, storms, rains, river flows, and war. Indra is the most mentioned deity in the Ṛg Veda: