Decisions were done in those days by consultation with professionals in the government and outside. Unlike today, when diktats are issued by Tughlak and are a fait accompli. (sorry, that is not an Indian word or concept).
"Nehru was disturbed by developments along Central Vista. Deolalikar's Bhawans did not appeal to him. Billimoria's Bhawans were under construction and Nehru was apprehensive. In those days a national library and a national theatre were proposed along Central Vista. Rana's proposal for the national theatre was shelved, and the idea was later Incorporated in the IGNCA. So Nehru set up a central vista committee in 1959: a sort of Mini-Art-Commission with Joglekar, Benjamin, Billimoria, Kanvinde, Bijit Ghosh and myself among the members. Meetings with chaired by Dharam Vira, then Secretary, Ministry of Works and Housing. We could not succeed in improving Billimoria's Bhawans because Joglekar kept insisting that the designs were final and construction had started. The committee then turned down the proposal by Gill and myself for extensions to the National Archives. This is why a competition was floated. After the Delhi Urban Arts Commission was formed, the Central Vista committee declined in importance, but it still exists and can put a spoke in the wheels of any Vista-related project should any of its members be so inclined. I hear this has happened to IGNCA."