Nellore is a city and district headquarters of Nellore district in the Indian state of Andhra Pradesh. It is located on the banks of Penna River and is the fourth most populous city in the state.EtymologyA mythological story from Sthala Purana depicts, a lingam in the form of a stone under belli tree. The place gradually became Nelli-ooru ("Nelli" in Telugu stands for Tree and ooru in Telugu stands for place) and then to present day Nellore.