However, none was injured, police said.
The CT scan equipment's transformer costing about Rs.10 lakh was completely damaged in the blaze, police said.
The hospital staff and Fire Service personnel disconnected power supply immediately after noticing smoke in the CT scan room.
The fire was caused by an electrical short circuit, police said.
Hospital officials said no one was injured, though the maternity ward and child care ward, in-patient wards and trauma ward were located close to the room.
An official said the investigation would include the quality of wiring among other things.
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