From a flame to the blaze, here's how the fire spread

Firemen rescue patients after a fire broke out at SUM hospital, a leading private hospital in Bhubaneswar | Biswanath Swain

A minor flame was first spotted near a medicine repository of the Medicine ICU at around 7:30 pm
Cause of flame, Fire Department sources say - Short Circuit, source of fire under investigation
Fire and smoke spread between the false ceiling and main ceiling of the second floor.
Once smoke engulfed the Medicine ICU completely, the fire spread to the Dialysis centre located right opposite.
Entire corridor was charred by then. Smoke billowed out of the second floor, chaos in ICU and Dialysis Centre as patients and attendants cry for help.
Fire Stations at Baramunda, Secretariat, Chandrasekhpur and Kalpana Square get an alert at 7:41 pm.
Six fire engines mobilised, reach SUM Hospital by 7:56 pm and rush up fire fighting and rescue simultaneously.
By then the entire floor was ravaged. Glass panes were broken to facilitate ventilation.
A majority of patients were shifted into ambulances and emergency vehicles lined downstairs, through the fire exit (staircase).
Sixteen 108 ambulances pressed into service to shift patients to nearby hospitals.
Some patients brought down by Fire Services ladders.
The fire was under control by 10:15 pm. Fire Services personnel engaged till 11 pm. Second floor sealed.