Three labourers were killed and one was injured on Tuesday after an open lift plunged from the seventh floor of a building being constructed in Delhi.
The incident took place at a Delhi Development Authority (DDA) housing society being built at Dwarka Sector-14 in south-west Delhi.
Three labourers were declared dead in hospital, a senior police officer said.
Two of the men have been identified as Panna Lal Yadav Basant and Mangal Prasad Singh.
A fourth man, 48-year-old Surender Rai, is being treated in hospital.
A case has been filed, the police say, and it lists charges like death by negligence and endangering lives.