Tainted or sub-standard drugs probably led to the deaths of 13 Indian women after sterilization surgery at a family-planning "camp", and owners of the factories that produced them have been summoned for questioning, a senior official said on Thursday.
Meanwhile, the doctor who carried out the sterilization of 83 women in less than three hours at a hospital in the eastern state of Chhattisgarh denied reports the equipment he used was rusty or dirty and blamed adulterated medicines for the tragedy.