Lucknow is the capital and the largest city of the Indian state of Uttar Pradesh and it is the administrative headquarters of the eponymous district and division. Having a population of 2.8 million as per 2011 census, it is the eleventh most populous city and the twelfth-most populous urban agglomeration of India. Lucknow has always been a multicultural city that flourished as a North Indian cultural and artistic hub, and the seat of power of Nawabs in the 18th and 19th centuries. It continues to be an important centre of governance, administration, education, commerce, aerospace, finance, pharmaceuticals, information technology, design, culture, tourism, music, and poetry. Lucknow, along with Agra and Varanasi, is in the Uttar Pradesh Heritage Arc, a chain of survey triangulations created by the Government of Uttar Pradesh to boost tourism in the state.