Sir Edwin Lutyens was a British architect known for designing New Delhi when India was still part of the British Empire in the 1920s-1930s. Some of his most notable designs for New Delhi include India Gate, Rashtrapati Bhavan, and the city's central administrative area. Lutyens designed the city based on classical principles of symmetry, order and balance. However, his initial plan of gridded streets had to be modified on recommendations to incorporate roundabouts, trees and gardens to protect against dust storms. While Lutyens' designs for New Delhi were praised for their grandeur and integration of nature, little attention was paid to the existing city of Old Delhi, which led to overcrowding problems there