Government doctors in Tamil Nadu have threatened to go on an indefinite strike from October 25 if their demands for a pay hike are not met by the state government. The doctors are demanding pay parity with central government doctors. Thousands of patients across the state could be affected if the doctors go on strike. The October 24 deadline was set after the Federation of Government Doctors Associations held an emergency meeting at the Madras Medical College Hospital today. Only emergency services will be attended to if their demands are not met, the doctors' body said. The doctors said they will not perform elective surgeries will not be performed.