Uttar Pradesh (; Hindi: [ˈʊtːəɾ pɾəˈdeːʃ] (listen), lit. 'Northern Province') is a state in northern India. With over 200 million inhabitants, it is the most populated state in India as well as the most populous country subdivision in the world. It was established in 1950 after India had become a republic. It was a successor to the United Provinces (UP) during the period of the Dominion of India (1947–1950), which in turn was a successor to the United Provinces (UP) established in 1935, and eventually of the United Provinces of Agra and Oudh established in 1902 during the British Raj. The state is divided into 18 divisions and 75 districts, with the state capital being Lucknow, and Prayagraj serving as the judicial capital. On 9 November 2000, a new state, Uttaranchal (now Uttarakhand), was created from Uttar Pradesh's western Himalayan hill region. The two major rivers of the state, the Ganges and its tributary Yamuna, meet at the Triveni Sangam in Prayagraj, a Hindu pilgrimage site. Other notable rivers are Gomti and Saryu. The forest cover in the state is 6.1 per cent of the state's geographical area. The cultivable area is 82 per cent of total geographical area and net area sown is 68.5 per cent of cultivable area.The state is bordered by Rajasthan to the west, Haryana, Himachal Pradesh and Delhi to the northwest, Uttarakhand and an international border with Nepal to the north, Bihar to the east, Madhya Pradesh to the south, and touches the states of Jharkhand and Chhattisgarh to the southeast. It covers 240,928 km2 (93,023 sq mi), equal to 7.3% of the total area of India, and is the fourth-largest Indian state by area. Though long known for sugar production, the state's economy is now dominated by the services industry. The service sector comprises travel and tourism, hotel industry, real estate, insurance and financial consultancies. The economy of Uttar Pradesh is the third-largest state economy in India with ₹17.05 lakh crore (US$210 billion) in gross domestic product and a per capita GSDP of ₹65,431 (US$820). President's rule has been imposed in Uttar Pradesh ten times since 1968, for different reasons and for a total of 1,700 days. The state has currently three international airports, Chaudhary Charan Singh International Airport (Lucknow), Lal Bahadur Shastri Airport (Varanasi) and Kushinagar International Airport (Kushinagar). Allahabad Junction is the headquarters of the North Central Railway and Gorakhpur Railway Station serves as the headquarters of the North Eastern Railway. The High Court of the state is located in Allahabad. The state contributes 80 seats and 31 seats to the lower house Lok Sabha and the upper house Rajya Sabha, respectively. Inhabitants of the state are called either Awadhi, Bagheli, Bhojpuri, Braji, Bundeli, Kannauji, or Rohilkhandi depending upon their region of origin. Hinduism is practised by more than three-fourths of the population, with Islam being the next largest religious group. Hindi is the most widely spoken language and is also the official language of the state, along with Urdu. Bhojpuri is the second most widely spoken language of the state after Hindi. Uttar Pradesh was home to most of the mainstream political entities that have existed in ancient and medieval India including the Maurya Empire, Harsha Empire, Gupta Empire, Pala Empire, Delhi Sultanate, Mughal Empire as well as many other empires. At the time of Indian independence movement in the early 20th century, there were three major princely states in Uttar Pradesh – Ramgadi, Rampur and Benares. The state houses several holy Hindu temples and pilgrimage centres. Uttar Pradesh has three World Heritage sites and ranks first among tourist destinations in India. Uttar Pradesh has several historical, natural, and religious tourist destinations, including Agra, Aligarh, Ayodhya, Kushinagar, Prayagraj, Varanasi and Vrindavan.

Lucknow (, Hindustani: [ˈləkʰnəuː] (listen) Lakhnaū) is the capital and the largest city of the Indian state of Uttar Pradesh and it is also the second largest urban agglomeration in Uttar Pradesh. Lucknow 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, technology, design, culture, tourism, music and poetry.The city stands at an elevation of approximately 123 metres (404 ft) above sea level. Lucknow city had an area of 402 km2 (155 square miles) till December 2019, when 88 villages were added to the municipal limits and the area increased to 631 km2 (244 square miles). Bounded on the east by Barabanki, on the west by Unnao, on the south by Raebareli and in the north by Sitapur and Hardoi, Lucknow sits on the northwestern shore of the Gomti River. As of 2008, there were 110 wards in the city. Morphologically, three clear demarcations exist: The Central business district, which is a fully built up area, comprises Hazratganj, Aminabad and Chowk. A middle zone surrounds the inner zone with cement houses while the outer zone consists of slums.Historically, Lucknow was the capital of the Awadh region, controlled by the Delhi Sultanate and later the Mughal Empire. It was transferred to the Nawabs of Awadh. In 1856, the British East India Company abolished local rule and took complete control of the city along with the rest of Awadh and, in 1857, transferred it to the British Raj. Along with the rest of India, Lucknow became independent from Britain on 15 August 1947. It has been listed as the 17th-fastest growing city in India and 74th in the world.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.