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.

Dehradun () is the capital and the most populous city of the Indian state of Uttarakhand. It is the administrative headquarters of the eponymous district and is governed by the Dehradun Municipal Corporation, with the Uttarakhand Legislative Assembly holding its winter sessions in the city as its winter capital. Part of the Garhwal region, and housing the headquarters of its Divisional Commissioner. Dehradun is one of the "Counter Magnets" of the National Capital Region (NCR) being developed as an alternative center of growth to help ease the migration and population explosion in the Delhi metropolitan area and to establish a smart city in the Himalayas. It is the third largest city in the Himalayas after Kathmandu and Srinagar. Dehradun is located in the Doon Valley on the foothills of the Himalayas nestled between Song river, a tributary of Ganga on the east and the Asan river, a tributary of Yamuna on the west. The city is noted for its picturesque landscape and slightly milder climate and provides a gateway to the surrounding region. Dehradun is a notable academic and research hub and is home to the Indian Military Academy, Forest Research Institute, Indira Gandhi National Forest Academy, The Doon School, Welham Boys School, Welham Girls School, Brightlands School, Rashtriya Indian Military College, Uttarakhand Ayurveda University, Wadia Institute of Himalayan Geology and the Indian Institute of Remote Sensing. It is the headquarters of the Surveyor-General of India. According to the combined survey based on health, infrastructure, economy, education, and crime, conducted by Dainik Jagran and KPMG, Dehradun is one of India's safest cities. Dehradun is also known for its Basmati rice and bakery products. Also known as the 'Abode of Drona', Dehradun has been an important center for Garhwal rulers and was captured by the British. For its strategic value, in addition to the location of its principal service academy, the Indian Armed Forces maintain a considerable presence in Dehradun, at the Garhi Cantonment and Naval Station. The Uttarakhand Police is the primary law enforcement agency in the city. It is well connected and in proximity to Himalayan tourist destinations such as Mussoorie, Dhanaulti, Chakrata, New Tehri, Uttarkashi, Harsil, Chopta-Tungnath, Auli, and famous summer and winter hiking destinations like the Valley of Flowers at Dodital, Dayara Bugyal, Kedarkantha, Har Ki Dun and Hemkunt Sahib for camping and Himalayan panoramic views. The Hindu holy cities of Haridwar and Rishikesh, along with the Himalayan pilgrimage circuit of Chota Char Dham, viz. Yamunotri, Gangotri, Kedarnath and Badrinath, are also primarily accessed via Dehradun, the closest major city.