LUCKNOW, June 24 -- The 15 people who died in the devastating fire that swept through a commercial building in Lucknow's Aliganj area are believed to have died due to smoke inhalation and suffocation rather than burn injuries, postmortem findings read. Official sources said the postmortem reports of all 15 victims were handed over to the police on Tuesday and subsequently forwarded to the district administration, including the district magistrate and the special investigation team (SIT) constituted to probe the incident. Sources familiar with autopsy findings said burn marks were found on the bodies of three or four victims. However, the injuries were not severe enough to have caused death. Preliminary medical opinion suggests that most victims succumbed to asphyxia after inhaling large quantities of smoke while trapped inside the building. The reports also revealed the presence of carbon particles in the pharynx, larynx and trachea of the deceased, a key forensic indicator that they were alive and breathing while fire raged. Investigators believe many victims were overcome by toxic smoke as it rapidly engulfed staircases and enclosed spaces, leaving them disoriented and unable to find safe escape route. The findings suggest several occupants may have survived initial outbreak of blaze but were later trapped by thick smoke that cut off air and reduced visibility inside building, turning it into deadly enclosure. A panel of six doctors conducted the postmortem examinations of all 15 victims. According to officials, the first postmortem examination commenced at 9:20 pm on Monday and the final autopsy was completed at 3:40 am on Tuesday. By 5 am, the bodies of 12 victims had been dispatched to their families. The remaining three bodies were handed over to relatives at around 10 am....