Delhi dĕlˈē , union territory and city, N central India. The union territory, officially the National Capital Territory of Delhi (2021 est. metro area pop. 31,181,000,), 573 sq mi (1,484 sq km), is on the Delhi plain, which is crossed by the Yamuna River and stretches between the Aravalli Hills on the south and the Shiwalik Range on the north, connecting the alluvial valleys of the Indus and Ganges river systems. A hot and arid region, with temperatures rising above 110℉ (43℃) in the summer, it has extensive irrigation works to support agriculture. Hindi and Urdu are spoken by more than 90% of the population. New Delhi, the capital of India, and Delhi (or Old Delhi; see below) are the chief urban centers. It is governed by a chief minister and cabinet responsible to an elected unicameral legislature and by a governor appointed by the president of India.

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