[1] Inaugurated by then-Prime Minister Indira Gandhi for the India International Trade Fair called Asia 72, it was the world’s first and, at the time, the largest-span space-frame structure built in reinforced concrete.
Its destruction by the India Trade Promotion Organisation (ITPO) occurred while legal proceedings were still underway to determine its heritage status.
"[7] When the demolition of the Hall of Nations as part of the redevelopment plans were revealed in November 2015, it led to protest not merely by local architects but also by museums like the Museum of Modern Art (MoMA) in New York; the Centre Pompidou in Paris requested the Government of India to consider preserving the complex of buildings as heritage structures.
The demolition of the building, which was considered iconic for its architecture, led to widespread national and global disapproval.
[8][9] It was described in The New York Times as a brutalist masterpiece and one of the world's largest-span space frame concrete structures, when built.