Delhi is spread over an area of 1497 sq. km, it is one of the greenest metros in the country. The city has experienced tremendous growth in the recent times, with increased pressure on its open spaces. Delhi Development Authority (DDA), the first Urban Development Authority in India, has played a key role in overall development and management of its green spaces, with conscious efforts towards the development of open spaces as Regional parks, District parks, Green Belts and Neighbourhood greens etc. with many small and big parks under its jurisdiction, DDA has kept its commitment of upgradation and maintenance of green areas, which form the lungs of the city; with its recent efforts towards development of Bio-diversity parks, river front development, reclamation of sanitary landfill sites and rejuvenation of water bodies and revival of lakes.
In the process of designing and upgradation of green areas, efforts have been put to incorporate design features for differently abled people. DDA has considered and has been able to integrate such special features in their landscape design. These design features are introduced in entrance plaza, kids play area, sitting area and pathways. For example, entrance Plaza of Millennium Park provides ramps for the ease of access to all people with special needs.