Adershir was born on 24 April 1884 in Bombay to Rustomjee Dalal, who worked as share-broker. In 1905 he applied for J. N. Tata Scholarship for higher studies went to London and finally appeared for ICS examination and joined Indian Civil Service in 1908.
He joined Tata Group as a Director of Tata Steel in 1931 and served Tata group till 1941 and again from 1945 his death in 1949. He was knighted in 1939.
He was one of the signatories to the Bombay Plan formulated in 1944.
In June 1944, he resigned from Tatas as the Viceroy, Lord Wavell, invited him to join the Viceroy's Executive Council as Member-in-Charge of Planning and Development. His contributions as one of the architects of the Government of India's post war economic plan formulated in 1945 have been noted.
A hospital-cum-nursing college in Jamshedpur has been named after him as Ardeshir Dalal Memorial Hospital.
- Journal of scientific and industrial research , Volume 8. 1949. p. 447.
- Sir Adershir Dalal Archived 17 March 2012 at the Wayback Machine
- A.R. Dalal
- The Fortnightly , Volume 162. 1944. p. 172.
- London Gazette, 1 January 1946
- "Archived copy". Archived from the original on 10 May 2012. Retrieved 20 June 2012.CS1 maint: archived copy as title (link)