The fire broke out at around 1.45 PM on the top floor of six-storeyed FICCI building in central Delhi's Mandi House area.
Initially eight fire tenders from the Connaught Place Fire Station were rushed to the spot and a team of 12 fire officials went inside the building to assess the situation.
In no time, they rang the alarm bells and a dozen more firetenders were rushed from Safdarjung and the headquaters fire stations, Deputy Director of Delhi Fire Services Atul Garg said, adding, 35 fire tenders in total and two skylifts were pressed into service in the operation that lasted for over four hours.
Around 170 firefighters joined the operation and they went inside the building that was virtually turned into a burning furnace, by turns, in teams comprising 8-12 officials, said former fire chief A K Sharma who was also supervising the operation.
The operation hit a critical point when six firefighters -- including an Assistant Divisional Officer, a station officer and a sub-officer -- were stuck on the fourth floor of the building.
When they were trying to control the situation on the fourth floor dodging burning fibre ceilings which was falling down in pieces, the fire made its way to the third floor too. They tried to retreat but the approach zone towards both staircases were blocked by burning material.
The officials gave visual signals with their flash lights and one of them managed to make an SOS call through his wireless, following which a rescue operation was launched immediately.
They were all rushed to a hospital after having inhaled excessive smoke, and discharged later by this evening, Sharma said.
The main factors which caused the fire to spread fast
included the fibre ceilings, plyboard partitions, use of plastics to cover the exhibits and the scaffolding.
Things turned worse when the fire reached the AC plant room and the audio-visual room. Adding to the woes, the fire safety mechanism of the building was not functioning.
Over 3 lakh litres of water were used for firefighting, a senior fire official said.
All exhibits, mostly herpetological specimen and taxidermied animals, were gutted in the fire, except for the ones on the ground floor where the fire could not spread. The building also had a library, an auditorium and several office chambers.
The fire was controlled at around 6 AM, following which a cooling operation was launched, which went on for several hours. Even in the evening, smoke could be seen billowing from the top floor of the blackened structure that once used to be a favourite summer retreat for school-goers.
Environment Minister Prakash Javadekar, who visited the spot, ordered a safety audit of all museums under his ministry.
A senior official at the museum said the last fire audit in the museum was conducted around two months ago. Most of the exhibits have been lost but they can be restored, except for the fossils. The fifth floor had research work and art work of prominent artistes.
