Engineer's Day is observed in India on September 15
It is celebrated as tribute to the greatest Indian engineer and Bharat Ratna Sir Mokshagundam Vishweshvaraya (popularly known as Sir MV).
Engineer's Day is observed in several countries on various dates of the year.
As of the 20th of November 2019, the World Federation of Engineering Organizations (WFEO) has designated March 4th as 'World Engineering Day for a Sustainable World'.