Two persons were rescued from the debris early this morning after the four-storeyed structure in Sector-VI of Rohini collapsed at around 8:30 pm last night, they said.
The building is located behind Ambedkar Hospital.
The victims have been identified as Gunjan (25) and her daughters Narmada (6) and Bharti (six months), a senior police official said. Gunjan's husband Karia survived the incident.
The injured had been admitted to hospital where they are undergoing treatment