Varanasi, also commonly known as Banaras or Benaras, is a city situated on the banks of the River Ganges in the Indian state of Uttar Pradesh, 320 kilometres (199 mi) southeast of state capital Lucknow. It is regarded as a holy city by Hindus, Buddhists and Jains. It is one of the oldest continuously inhabited cities in the world and the oldest in India.
The Kashi Naresh (Maharaja of Kashi) is the chief cultural patron of Varanasi and an essential part of all religious celebrations. The culture of Varanasi is closely associated with the River Ganges and the river's religious importance. The city has been a cultural and religious centre in North India for several thousand years. The Benares Gharana form of the Indian classical music developed in Varanasi, and many prominent Indian philosophers, poets, writers, and musicians resided or reside in Varanasi. Gautama Buddha gave his first sermon at Sarnath located near Varanasi (Kashi).
People often refer to Varanasi as "the city of temples", "the holy city of India", "the religious capital of India", "the city of lights", "the city of learning", and "the oldest living city on earth."
Information based on http://en.wikipedia.org/wiki/Varanasi