New Delhi — Capital of India

New Delhi is a comparatively young, purpose-built city, laid out and constructed between 1912 and 1931 by the British colonial government under the direction of architects Edwin Lutyens and Herbert Baker, and it was formally inaugurated as the capital of British India in 1931, replacing Calcutta (now Kolkata), which had served as the capital of British India since 1772 but was seen by the colonial administration as increasingly distant from the political and symbolic center of the subcontinent it wanted to project.

New Delhi was deliberately built adjacent to, rather than on top of, the much older city of Delhi, which had already served as the capital of numerous empires and dynasties over roughly a thousand years before the British arrived — including the Delhi Sultanate from the 13th century and the Mughal Empire, whose capital Shahjahanabad (Old Delhi), founded by Emperor Shah Jahan in the 1640s, still exists as a distinct historic district within the modern metropolitan area, home to the Red Fort and Jama Masjid.

The decision to move the colonial capital from Calcutta to Delhi, announced at the 1911 Delhi Durbar attended by King George V, was explicitly framed by British officials as a restoration of Delhi's historic role as the seat of successive Indian empires, giving the new colonial capital a claimed continuity with the Mughal and pre-Mughal past even though New Delhi's actual architecture and planning were thoroughly British in design, centered on the wide processional avenue now called Rajpath (renamed Kartavya Path in 2022) leading to the Rashtrapati Bhavan, the former Viceroy's House and now the Indian president's official residence.

New Delhi retained its status as capital after India's independence in 1947 without disruption, becoming the seat of the newly sovereign Indian government, and it was formally constituted as a Union Territory (the National Capital Territory of Delhi) with its own local government in 1991, distinct in administrative status from India's regular states, reflecting the unusual governance arrangements capital territories often require.

The city hosts India's Parliament, Supreme Court, and the presidential residence, and it has grown into part of the vastly larger National Capital Region metropolitan area that includes Old Delhi and satellite cities like Gurugram and Noida — meaning 'New Delhi' in the strict administrative sense refers to a comparatively small core district within the much larger urban sprawl commonly called simply 'Delhi.'

India Gate, a 42-meter sandstone war memorial completed in 1931 to commemorate roughly 70,000 Indian soldiers who died fighting for the British Indian Army in the First World War and the Third Anglo-Afghan War, sits at the eastern end of the ceremonial Rajpath axis and remains one of New Delhi's most visited landmarks, its design drawing deliberately on Lutyens's earlier war-memorial work in Europe.

Since 2020, the Indian government has pursued the Central Vista Redevelopment Project, a large and contested overhaul of the government core built by Lutyens and Baker a century earlier, including a new triangular Parliament building inaugurated in 2023 and a redesigned Rajpath — renamed Kartavya Path — intended to modernize facilities that critics argued were never designed for a democracy's scale of governance nearly a century after their construction for a colonial administration.

New Delhi's winters have also become associated with a severe seasonal air pollution crisis, driven by a combination of vehicle emissions, construction dust, and crop-residue burning in neighboring Punjab and Haryana states, that regularly pushes the capital's air quality into hazardous ranges each November and December and has prompted recurring emergency measures including school closures and construction bans.