Indra is the leader of the Devas and the lord of Svargaloka or a level of Heaven in Hinduism. He is the deva of rain and thunderstorms. He wields a lightning thunderbolt known as vajra and rides on a white elephant known as Airavata.His horse`s name is Uchchaihshrava. Indra is the most important deity worshiped by the Rigvedic tribes.
Indra is described as being very powerful, with a reddish complexion, and with either two or four very long arms. His parents were the sky god Dyaus Pita and the earth goddess Prthivi; he was born fully grown and fully armed from his mother`s side. His wife was Indrani, and his attendants were called the Maruts. His sons are named as Jayanta, Midhusa, Nilambara, Rbhus, Rsabha, Sitragupta, and, most importantly, Arjuna.
Indra`s most notable exploit was his battle with the asura Vritra. Vritra took the form of a mighty dragon, and had stolen all the water in the world for himself. No one could do anything about this until Indra was born. Upon hearing what had happened, Indra vowed to take back the life-giving liquid. He rode forth to meet him the terrible Vritra. He consumed great amounts of Soma to give him the strength needed to fight such a foe. Indra smashed through Vritra ninety-nine fortresses, and then came upon the dragon. The two clashed, and after a long battle Indra was able to destroy his powerful enemy. Vritra had been keeping the earth in a drought, but when Indra split open the demon, the waters again fell from the skies. So Indra became a hero to all people, and the gods elected him their king for his victory.