Indra has many epithets in the Indian religions, notably Śakra (शक्र, powerful one),

In Rigveda, Indra is described as strong willed, armed with a thunderbolt, riding a chariot:

5. Let bullish heaven strengthen you, the bull; as bull you travel with your two bullish fallow bays. As bull with a bullish chariot, well-lipped one, as bull with bullish will, you of the mace, set us up in loot.

Left: Indra as a guardian deity sitting on elephant in Jain cave temple at Ellora, c. 600–1000 CE
Right: Indra, Indrani with elephant at the 9th-century Mirpur Jain Temple in Rajasthan (rebuilt 15th-century).