Overview
- The joint Forensic Science Laboratory teams from Jodhpur and Jaipur traced the ignition point to a roof‑mounted air-conditioning unit wired directly to the engine.
- Smoke and carbon monoxide rapidly filled the sleeper cabin, causing suffocation before the blaze consumed the vehicle within about 5–7 minutes.
- Investigators found the tyres, fuel tank and underbody intact, and recovered soaked, unignited firecrackers, which ruled out any explosive cause.
- Documented violations included unsafe wiring, non‑fire‑resistant body materials, a seat blocking the emergency exit, and the absence of extinguishers and window‑breaking hammers.
- Police reported arrests of the bus owner, the driver and the body‑maker, while the Special Investigation Team continues to examine negligence and regulatory failures.