The building was occupied by 14 persons of four different families who were residing on separate floors.
"Ten people including five children and three women have been killed in the building collapse while two persons have been injured," said Deputy Commissioner of Police (North) Madhur Verma.
Two escaped unhurt as they had left early for work, police said.
The deceased have been identified as Asif (10), Adiba (14), Rehan (7), Mohammad Izaz (24), Mohammad Uzale (22), Imtiyaz (24), Rubina (30), Sahana (28), Sabba (5) and Abdul Aadib (7). The injured who are under treatment at Bara Hindu Rao hospital are Abdul Rashid (38) and Mohammad Naeem (39). The lucky two were Pappu and Tanveer.
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"Based on the statement of Abdul Rashid who owns the building and is also one of the injured a case under section 304A was registered at the Sarai Rohilla police station against the adjacent building owner. The owner and the contractor of the adjacent building identified as Javed is currently absconding," said Verma.
An assistant engineer and a junior engineer of NDMC's Karol Bagh zone have been suspended, NDMC PRO Yogendra Singh Mann said, adding that an inquiry has been ordered into the incident in Inderlok area.
Meanwhile, Congress and Aam Admi Party used the opportunity to hit out at the BJP-led municipal corporations over the building collapse in north Delhi and demanded that the Lt Governor should order a "probe" into the incident.