(4)When any accident or dangerous occurrence specified in the Schedule takes place in a factory and it causes such bodily injury to any person as prevents the persons injured from working for a period of 48 hours or more immediately following the accident or the dangerous occurrence, as the case may be, the Manager of the factory shall send a report thereof to the Inspector of Factories of the region concerned as well as to the Chief Inspector of Factories in Form No. 18 within 24 hours after the expiry of 48 hours from the time of the accident or the dangerous occurrence :Provided that if in the case of an accident or dangerous occurrence, death occurs of any person injured by such accident or dangerous occurrence after the notice and reports referred to in the foregoing sub-rules have been sent, the Manager of the factory shall forthwith send a notice thereof by telephone, special messenger or telegram to the authorities and persons mentioned in sub-rules (1) and (2) and also have this information confirmed in writing within 12 hours of the death :Provided further that, if the period of disability from working for 48 hours or more referred to in sub-rule (4) does not occur immediately following the accident, or the dangerous occurrence but later, or occurs in more than one spell, the reports referred to shall be sent to the Inspector of Factories of the region concerned as well as to the Chief Inspector of Factories in Form No. 18 within 24 hours immediately following the hour when the actual total period of disability from working results from the accident or the dangerous occurrence becomes 48 hours.