His invention revolutionized India's dairy farming industry (Operation Flood) and laid the foundation for Amul cooperative's immense success.

Buffalo milk was abundant in the Kheda district but the possibility of transporting it to bigger markets was limited due to technological constraints.

The collective consensus of dairy experts worldwide was that buffalo milk could not be spray-dried due to its high fat content.

In 1955, his keen technological knowledge and engineering capabilities resulted in the installation of the patented Spray Dry Equipment, the world's first buffalo milk spray-dryer, at Amul Dairy in Gujrat.

While Tribhuvandas Kishibai Patel is regarded as its "father" and Verghese Kurien as its "son", H. M. Dalaya is considered its "holy ghost" whose contribution changed the future of Indian dairy farming.