After receiving a call about the incident, the fire department sent 16 fire tenders to the spot, a senior fire official said.
The Delhi Fire Service is also facing manpower crunch in the fire fighting staff section as of the 3,127 posts in the fire fighting section, 913 are vacant.
Police said the victims were sleeping in a room inside the warehouse when the incident happened.
According to a DCW official, there were 22-25 people present inside the office when the fire broke out in the conference hall.
The three-day programme at the Fire Safety Academy at Rohini in north Delhi would also include on-field training.
This has been revealed in the scrutiny of major hospitals following the August 17 fire at the teaching and PC block of the AIIMS.
The DFS will charge a minimal amount for the training, importantly the NOC for the establishment will also be based on intimation given to the DFS that such staff is available with them.
Around 9:30 in the evening, as the firefighters attempted to douse the fame, the woman gave birth to a healthy baby girl.
Initial investigation suggests short circuit as the cause of the fire though an official reason is yet to be given.
A call about the fire was received at 7.47 am, after which 21 fire tenders were rushed to the spot.
While the fire is yet to be brought under control, there were no reports of any injury yet.
We had to break down a few walls as the entrances were locked and burning. Locals helped us do that and we were able to rescue many, the fire officer said.
Delhi CM said that lapses behind the massive fire would be looked into and announced compensation of Rs 5 lakh each for the families of the deceased and Rs 2 lakh each to the injured.
The blaze, which occurred due to short circuit in electric metres, was doused by 5.25 am.
The fire occurred in a four-storey residential building due to short circuit in electric metres.