Under the orders of the Narodnaya Volya, Khalturin constructed a mine on 17 February 1880, in the basement of the building under the dining-room. The mine was set to go off at the time which Narodnaya Volya had calculated the Tsar to be having dinner.
Following orders from the Narodnaya Volya, Khalturin built a mine in the basement of the building where the dining room was located on February 17, 1880. The explosive device was timed to detonate during the time that the Tsar was expected to be having dinner.