An IAS officer of 1980 batch belonging to Tamil Nadu cadre, Das replaced R H Khwaja who retired on February 28 upon attaining the age of superannuation.
"The assignment of additional charge of the post of Secretary, Ministry of Mines to Shaktikanta Das... (is) for a period of three months with effect from March 1 or until further orders, whichever is earlier," an official statement said.
Das had been with the Finance Ministry in various roles before he took over as Fertiliser Secretary.