Dehradun's history is deeply intertwined with ancient mythology and medieval heritage. According to legend, the city is connected to the epic Mahabharata, believed to be the birthplace of Dronacharya, the royal guru of the Kauravas and Pandavas, giving the region the ancient name "Drona Nagari." The modern founding of Dehradun, however, dates back to 1676, when Sikh Guru Ram Rai, the eldest son of the seventh Sikh Guru, Guru Har Rai, established his "dera" (camp) in the "doon" (valley). This event gave the city its enduring name: Dera-Doon.
During the late 18th century, the region faced invasions and was eventually captured by the Gurkhas of Nepal in 1803, who ruled until the Anglo-Nepalese War (1814–1816). The British defeated the Gurkhas and annexed Dehradun, integrating it into the United Provinces. Under British rule, the city saw significant infrastructural and educational development, becoming a prominent cantonment town and educational hub.
Following India's independence in 1947, Dehradun continued to grow as a major city in Uttar Pradesh. Its most transformative modern milestone occurred in November 2000, when it was named the capital of the newly formed state of Uttarakhand (initially Uttaranchal), triggering a rapid wave of administrative, economic, and demographic expansion.
