The devastating fire broke out early on Sunday morning.
At least 43 people were killed after a fire swept through a factory in Delhi, police and government officials said.
It broke out on Sunday morning in the congested Anaj Mandi area of the Indian capital and spread quickly, local media reported.
The chief minister of Delhi Arvind Kejriwal said while visiting the scene of the fire that he had ordered an inquiry into the incident.
Prime Minister Narendra Modi called the fire "extremely horrific".
"Authorities are providing all possible assistance at the site of the tragedy," Modi tweeted.
The prime minister's office also announced that kin of those killed would receive 200,000 rupees (roughly €2500) and those injured would receive 50,000 rupees (roughly €600) from the national relief fund.
Home minister Amit Shah said in a tweet that there was a "tragic loss of previous lives" and that he had "instructed concerned authorities to provide all possible assistance on urgent basis.”
The cause of the fire was not immediately known.
This story is being updated as events unfold.