Emergency services at the Safdarjung Hospital were hit after resident doctors at the Safdarjung Hospital went on strike on Sunday following an assault on a doctor by a patient who happens to be son of a Delhi Police head constable. Police have registered a case and are probing the matter. According to police, 24-year-old Akshey Kumar arrived at the ER-3 ward of the hospital at around 7am and complained of abdominal pain. By this time, Kumar's father Virender, a Delhi Police head constable posted at Safdarjung police station, called up the duty constable Vinod at the hospital informing him that his son would be coming there for treatment. During treatment, Kumar allegedly abused the attending junior resident doctor 28-year-old Ravinder Nath Thakur. Doctors alleged that the police constables on duty at the hospital "backed" the attackers. "Following an argument, Kumar assaulted the doctor," said deputy commissioner of police (southwest) Devender Arya. "The doct