Siddaramaiah, Home Minister K J George and PWD Minister H C Mahadevappa and a senior official were asked to disembark from the helicopter owned by a private aviation firm as the fire was noticed at the HAL airport here, the Chief Minister's office said.
A harsh sound emanated from the silencer before the fire caused by a technical glitch was noticed, as the pilots were readying for take-off, it said in a statement here.
Siddaramaiah later left by road for Mysuru, the statement said.