Latest jobs Opening in DDA Delhi.The Delhi Development Authority was created in 1957 under the provisions of the Delhi Development Act "to promote and secure the development of Delhi "The initial location proposed for the Capital was to the north of the Northern Ridge. It was later changed to the present location around Raisina Hills India's Independence in 1947 and resultant migration increased Delhi's population from 7 lakhs to 17 lakhs by 1951. Open spaces were occupied by migrants. Civic services virtually collapsed. Delhi Improvement Trust and Municipal Body, the two local bodies at that time, were not adequately equipped to cope up with the changing scenario.