National Engineers' Day is celebrated on September 15, the birth anniversary of M. Visvesvaraya, who was born in 1861 at Muddenahalli in Karnataka. He was the Diwan of Mysore from 1912 to 1918 and worked on major infrastructure projects, contributing to irrigation, water management and flood protection. He authored books such as Planned Economy for India and Reconstructing India. Visvesvaraya was conferred the Bharat Ratna, India's highest civilian honour, in 1955, and he passed away in 1962.