Nandi, bull vahana of the Hindu god identified as the god's vehicle since the Kushan dynasty (1st dynasty). Nandi is a son of kasyapa and surabhi. in the saura purana Nandi, his role as shiva's gatekeeper is described as, " adorned all the ornaments, glowing like a thousand suns, holding a trident in his hand, three eyed, adorned with a silver of the moon, a thunderbolt in his hand, four-armed, like a second sankara.
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