Delhi’s Central Post Office: Two architects dominated the shaping of Delhi’s design DNA in the last century. In the early part, Sir Edwin Lutyens for forging the city’s imperial stature; and in the 1950s, Habib Rehman, the man who built modern Delhi. Dak Bhawan was designed in 1954 with a wide facade extending along Patel Chowk and is Delhi’s Central Post Office. Directly across from Dak Bhawan is the equally gripping Sardar Patel Bhawan, also designed by Rehman, whose studies at MIT also led to a fortuitous friendship with Walter Gropius, the father of the Bauhaus movement.