which city you are from. we can help you to 4 reliabe workshops in Rawalpindi / ISB , Karachi Lahore & Hyderabad
if you can check if the thermostat valve present in engine? - in cold engine remove radiator cap and start the engine watch carefully if the coolant in radiator at cold engine started flowing in a direction that means thermostat valve is missing. you shall buy thermostat and get it installed. before going to electrician for fan issue.