Indra is the leader of the Devas or demigods and the god of war, the god of thunder and storms.
His weapon is Vajra, the lighting bolt or thunder.
The most important story associated with Indra is that of him defeating Demon Vritra.
In Vedas and early Vedic age, Indra was one of the most powerful gods but was never considered or related to the concept of Brahman or Supreme Truth, which is the guiding principle of Sanatana Dharma
Indra Was a great warrior and he was good at archery and a master at handling all kinds of weapons. He also knew to use magic during the time of war