which indian states share a border with delhi
Delhi Delhi (/ˈdɛli/, Hindustani pronunciation: [d̪ɪlliː] Dilli), officially the National Capital Territory of Delhi (NCT), is a city and a union territory of India.[16][17] It is bordered by Haryana on three sides and by Uttar Pradesh to the east. The NCT covers an area of 1,484 square kilometres (573 sq mi). According to the 2011 census, Delhi city proper's population was over 11 million,[9] the second-highest in India after Mumbai, while the whole NCT's population was about 16.8 million.[10] Delhi's urban area is now considered to extend beyond the NCT boundary to include an estimated population of over 26 million people in an area now called as Central National Capital Region (CNCR), making it the world's second-largest urban area according to United Nations.[11] As of 2016[update] recent estimates of the metro economy of its urban area have ranked Delhi either the most or second-most productive metro area of India.[14][13][18][15] Delhi is the second-wealthiest city after Mumbai in India, with a total wealth of $450 billion and home to 18 billionaires and 23,000 millionaires.[19]
Delhi During the Indian Rebellion of 1857, Delhi fell to the forces of East India Company after a bloody fight known as the Siege of Delhi. The city came under the direct control of the British Government in 1858. It was made a district province of the Punjab.[24] In 1911, it was announced that the capital of British held territories in India was to be transferred from Calcutta to Delhi.[60] The name "New Delhi" was given in 1927, and the new capital was inaugurated on 13 February 1931. New Delhi, also known as Lutyens' Delhi,[61] was officially declared as the capital of the Union of India after the country gained independence on 15 August 1947.[62] During the partition of India, thousands of Hindu and Sikh refugees, mainly from West Punjab fled to Delhi, while many Muslim residents of the city migrated to Pakistan. Migration to Delhi from the rest of India continues (as of 2013[update]), contributing more to the rise of Delhi's population than the birth rate, which is declining.[63]