Fire broke out at 10:45 am and engulfed three buildings in the estate, causing partial damage, police said.
They said the rooftops of the three units - Bisma Works, Kashmir Steel Industries and GoodLuck Aluminium Works - were totally damaged in the fire.
Four fire tenders were rushed to the spot which brought the fire under control in an hour, police said.
There was no casualty in the incident, police said, adding the cause of the fire is being ascertained.