The incident occurred at 3 pm when the deceased identified as Raju Sharma, 22, and Ishtiyak Khan, 23, fell from the 10th floor after the wire of the stand they were sitting on broke. The deceased were cleaning the glass panes of the tower.
"Both Ishtiyak and Raju Sharma were conducting mirror cleaning work outside the high-rise Videocon Tower in central Delhi area. They did not wear helmets, were not tied with safety belts and there was no safety equipment found at the spot," a senior police officer said as quoted by the IANS.
"Ishtiyak and Raju Sharma were rushed to Lady Hardinge Hospital where they were later declared dead," he added.
"The responsibility of cleaning work was assigned to MS Enterprises company. The deceased persons worked for it and stayed in South Delhi," he said, adding that their families have been informed.
The police will be now investigating the private agency on charges of negligence. Police also said those responsible for the safety of the workers will be booked under relevant sections of the Indian Penal Code.