India, July 9 -- Two labourers died after inhaling toxic gas while carrying out maintenance work of a sewage treatment plant at the premises of a private hospital in Delhi's Paschim Vihar on Tuesday evening, police said on Wednesday.

The labourers were working for a private firm which was given the annual maintenance contract (AMC) by the hospital authorities, the police said. The incident happened around 6:30pm.

A case of death by negligence has been registered at the Paschim Vihar East police station.

Deputy commissioner of police (outer) Sachin Sharma said that on Tuesday evening, the Paschim Vihar East police station received information from the hospital regarding two medico-legal certificates (MLCs) of two people.

"Acting prompt...