Telangana ( (listen); Telugu: [ˈtelaŋɡaːɳa], Urdu: [ˈtɪləŋɡɑːna]) is a state in India situated on the south-central stretch of the Indian peninsula on the high Deccan Plateau. It is the eleventh-largest state and the twelfth-most populated state in India with a geographical area of 112,077 km2 (43,273 sq mi) and 35,193,978 residents as per 2011 census. On 2 June 2014, the area was separated from the northwestern part of Andhra Pradesh as the newly formed state with Hyderabad as its capital. Its other major cities include Warangal, Nizamabad, Khammam, Karimnagar and Ramagundam. Telangana is bordered by the states of Maharashtra to the north, Chhattisgarh to the northeast, Karnataka to the west, and Andhra Pradesh to the east and south. The terrain of Telangana region consists mostly is part of Deccan Plateau and dense forests covering an area of 27,292 km2 (10,538 sq mi). As of 2019, the state of Telangana is divided into 33 districts. Throughout antiquity and the Middle Ages, the region now known as Telangana was ruled by multiple major Indian powers such as the Mauryans, Satavahanas, Vishnukundinas, Chalukyas, Cholas, Rashtrakutas, Kakatiyas, Delhi Sultanate, Bahmani Sultanate, Golconda Sultanate. During the 16th and 17th centuries, the region was ruled by the Mughals of India. The region is known for its Ganga-Jamuni tehzeeb culture. During the 18th century and the British Raj, Telangana was ruled by the Nizam of Hyderabad. In 1823, the Nizams lost control over Northern Circars (Coastal Andhra) and Ceded Districts (Rayalseema), which were handed over to the East India Company. The annexation by the British of the Northern Circars deprived Hyderabad State, the Nizam's dominion, of the considerable coastline it formerly had, to that of a landlocked princely state with territories in the central Deccan, bounded on all sides by British India. Thereafter, the Northern Circars were governed as part of Madras Presidency until India's independence in 1947, after which the presidency became India's Madras state.The Hyderabad state joined the Union of India in 1948 after a police action. In 1956, the Hyderabad State was dissolved as part of the linguistic reorganization of states and Telangana was merged with the Telugu-speaking Andhra State (part of the Madras Presidency during the British Raj) to form Andhra Pradesh. A peasant-driven movement began to advocate for separation from Andhra Pradesh starting in the early 1950s, and continued until Telangana was granted statehood on 2 June 2014 under the leadership of K. Chandrashekar Rao.The economy of Telangana is the seventh-largest in India, with a gross state domestic product (GSDP) of ₹9.78 trillion (US$120 billion) and has the country's 6th-highest GSDP per capita of ₹237,632 (US$3,000). Telangana ranks 22nd among Indian states in human development index. The state has emerged as a major focus for robust IT software, industry and services sector. The state is also the main administrative Centre of many Indian defence aerospace and research labs like Bharat Dynamics Limited, Defence Metallurgical Research Laboratory, Defense Research and Development Organization and Defence Research and Development Laboratory.Hyderabadi cuisine and Kakatiya architecture both from Telangana, are on the list of creativity UNESCO creative city of gastronomy and UNESCO World Heritage Site. The cultural centers of Telangana, Hyderabad and Warangal, are noted for their wealth and renowned historical structures – Ramappa Temple (UNESCO World Heritage Site), Charminar, Qutb Shahi Tombs, Falaknuma Palace, Chowmahalla Palace, Warangal Fort, Kakatiya Kala Thoranam, Thousand Pillar Temple and the Bhongir Fort in Yadadri Bhuvanagiri district. The historic city Golconda in Hyderabad established itself as a diamond trading Centre and, until the end of the 19th century, the Golconda market was the primary source of the finest and largest diamonds in the world. Thus, the legendary name Golconda Diamonds became synonymous with Golconda itself. Religious edifices like the Lakshmi Narasimha Temple in Yadadri Bhuvanagiri district, Makkah Masjid in Hyderabad, the ancient Bhadrakali Temple and Govinda Rajula Gutta in Warangal, Alampur Jogulamba Temple in Jogulamba Gadwal district and Medak Cathedral, Kondagattu Anjaneya Swamy Temple, Kondagattu Veerabhadra Swamy Temple, Lord Shiva temple in Vemula Wada of Rajanna-Sircilla district are several of its most famous places of worship. Buddhism also flourished and many Aramams can be found. Dulikatta, Nagarjuna Konda is some of many eminent places for Buddhism.

Nalgonda is a city and municipality in the Indian state of Telangana. It is the headquarters of the Nalgonda district, as well as the headquarters of the Nalgonda mandal in the Nalgonda revenue division. It is located about 90 kilometres (56 mi) from the state capital Hyderabad.