where is this place located?
Indo-Gangetic Plain
New Delhi
Since the city is located on the Indo-Gangetic Plain, 
when did new delhi became the capital of india 13 February 1931
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New Delhi [SEP] Geography
With a total area of , New Delhi forms a small part of the Delhi metropolitan area. Since the city is located on the Indo-Gangetic Plain, there is little difference in elevation across the city. New Delhi and surrounding areas were once a part of the Aravali Range; all that is left of those mountains is the Delhi Ridge, which is also called the Lungs of Delhi. While New Delhi lies on the floodplains of the Yamuna River, it is essentially a landlocked city. East of the river is the urban area of Shahdara. New Delhi falls under the seismic zone-IV, making it vulnerable to earthquakes.