The National Disaster Response Force (NDRF) were pressed into service soon after the incident and rescue and search operations were underway. The Ghaziabad police said in a tweet that some labourers were rescued and sent to a hospital for treatment.
According to reports, 13 people were trapped after the structure collapsed, out of which seven have been pulled out.
"Prima facie, there seem to be issues with the quality of the building. A magisterial inquiry has been ordered. Seven people have been rescued and sent to a hospital," Ritu Maheshwari, district magistrate of Ghaziabad said.
She said six people have been detained for questioning in connection with the incident. Also, a compensation of Rs 2 lakh each for the kin of the deceased and Rs 50, 000 for the injured have been announced.
The incident comes within a week of a six-storey under-construction building collapsing on another five-storey building in Greater Noida.
The twin-building collapse in Shahberi village had claimed nine lives, including that of a toddler and two women.
(With inputs from PTI)