Vijayawada is a city in the Andhra Pradesh Capital Region, on the banks of River Krishna in Krishna district of the Indian state of Andhra Pradesh. The city is the third most densely populated in the urban population of built-up areas in the world. Vijayawada is classified as a Y-grade city as per the Sixth Central Pay Commission. Vijayawada is the commercial headquarters of Andhra Pradesh. The city is known for its landmarks such as Prakasham Barrage across the Krishna river;Krishnaveni Mandapam (River Museum) depicting the history of Krishna river and a nearby idol of the river known as Krishnaveni statue; Gandhi Hill, the first Mahatma Gandhi Memorial in the country, an elevation of 500 ft on the on a hill; Bhavani Island, one of the largest river island amidst Krishna River.