All are immediate causes of death in a case of burn, except -

Suffocation - because of smoke is one of the immediate causes of death Embolism: Pulmonary embolism from thrombosis of veins of the leg due to tissue damage and immobility Injury: severe injury may be one of the reasons for the immediate cause of death Sepsis: occurs after 4to 5 days or longer after burning most impoant factors of death REF: The Synopsis of Forensic Medicine and Toxicology 29th edition page no: 160.