Many of those staying at the Malviya Nagar facility had travelled to Delhi for treatment, officials said, as rescuers continued operations following the deadly blaze.
Unofficial sources put the death toll at eight, but officials have not confirmed this. Only three of the deceased, all from Motihari district in Bihar, have been identified so far.
According to officials, no casualties have been reported in the incident.
The infant has been referred to a hospital in Jaipur.
'Initially, light smoke was seen around 11 am, but by 11.30 flames were seen gushing out of windows with thick black smoke,' eyewitnesses said.
