Delhi Online

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Delhi, known locally as Dilli (Hindi: दिल्ली, Punjabi: ਦਿੱਲੀ, Urdu: دلّی dillī), and also by the official name National Capital Territory of Delhi (NCT), is the largest metropolis by area and the second-largest metropolis by population in India. It is the eighth largest metropolis in the world by population with more than 12.25 million inhabitants in the territory and with over 15.9 million residents in the National Capital Region area (which also includes Noida, Gurgaon, Greater Noida, Faridabad and Ghaziabad). The name Delhi is often also used to include some urban areas near the NCT, as well as to refer to New Delhi, the capital of India, which lies within the metropolis. The NCT is a federally administered union territory.

Located on the banks of the River Yamuna, Delhi has been continuously inhabited since at least the 6th century BCE. After the rise of the Delhi Sultanate, Delhi emerged as a major political, cultural and commercial city along the trade routes between northwest India and the Indo-Gangetic plains. It is the site of many ancient and medieval monuments, archaeological sites and remains. In 1639, Mughal emperor Shahjahan built a new walled city in Delhi which served as the capital of the Mughal Empire from 1649 to 1857.

After the British East India Company had gained control of much of India during the 18th and 19th centuries, Calcutta became the capital both under Company rule and under the British Raj, until George V announced in 1911 that it was to move back to Delhi. A new capital city, New Delhi, was built to the south of the old city during the 1920s. When India gained independence from British rule in 1947, New Delhi was declared its capital and seat of government. As such, New Delhi houses important offices of the federal government, including the Parliament of India, as well as numerous national museums, monuments, and art galleries.

Owing to the migration of people from across the country, Delhi has grown to be a multicultural, cosmopolitan metropolis. Its rapid development and urbanisation, coupled with the relatively high average income of its population, has transformed Delhi. Today, Delhi is a major cultural, political, and commercial center of India.

Delhi is located at 28°37′N 77°14′E / 28.61°N 77.23°E / 28.61; 77.23, and lies in northern India. It borders the Indian states of Uttar Pradesh on East and Haryana on West, North and South. Delhi lies almost entirely in the Gangetic plains. Two prominent features of the geography of Delhi are the Yamuna flood plain and the Delhi ridge. The low-lying Yamuna flood plains provide fertile alluvial soil suitable for agriculture. However, these plains are prone to recurrent floods. Reaching up to a height of 318 m (1,043 ft), the ridge forms the most dominating feature in this region. It originates from the Aravalli Range in the south and encircles the west, northeast and northwest parts of the city. Yamuna, a sacred river in Hinduism, is the only major river flowing through Delhi. Another river called the Hindon River separates Ghaziabad from the eastern part of Delhi. Delhi falls under seismic zone-IV, making it vulnerable to major earthquakes],although earthquakes are not so common in Delhi. Delhi has the third highest tree-cover among cities in India

The Delhi High Court has jurisdiction over Delhi. Delhi also has lower courts: the Small Causes Court for civil cases, and the Sessions Court for criminal cases. The Delhi Police, headed by the Police Commissioner, is one of the largest metropolitan police forces in the world. Delhi is administratively divided into nine police-zones, which are further subdivided into 95 local police stations.

Delhi was a traditional stronghold of the Indian National Congress, also known as the Congress Party. In the 1990s, the Bharatiya Janata Party (BJP) under the leadership of Madan Lal Khurana came into power; however in 1998, Congress regained power under Sheila Dixit, the incumbent Chief Minister. The Congress retained power in the Legislative Assembly in the 2003 and 2008 elections.

Delhi features an atypical version of a humid subtropical climate, with long very hot summers and brief mild winters. Summers are long and extremely hot, from early April to mid-October, with the monsoon season in between. Beginning of March sees a reversal in the direction of wind, from the north-western direction, to the south-western. These bring the hot waves from Rajasthan, carrying sand and are a characteristic of the Delhi summer. These are called loo. The months of March to May see a time of hot prickling heat. Monsoon arrives at the end of June, bringing some respite from the heat, but increasing humidity at the same time. Winter starts in late November and peaks in January and is notorious for its heavy fog. Extreme temperatures range from −0.6 °C (30.9 °F) to 44.5 °C (112.1 °F). The annual mean temperature is 25 °C (77 °F); monthly mean temperatures range from 13 °C to 32 °C (56 °F to 90 °F). The average annual rainfall is approximately 714 mm (28.1 inches), most of which is during the [monsoons in July and August. The average date of the advent of monsoon winds in Delhi is 29 June.