(1) The Atomic Energy Regulatory Board constituted under the Atomic Energy Act, 1962 (33 of 1962) shall, within a period of fifteen days from the date of occurrence of a nuclear incident, notify such nuclear incident:
     Provided that where the Atomic Energy Regulatory Board is satisfied that the gravity of threat and risk involved in a nuclear incident is insignificant, it shall not be required to notify such nuclear incident.
     (2) The Atomic Energy Regulatory Board shall, immediately after the notification under sub-section (1) is issued, cause wide publicity to be given to the occurrence of such nuclear incident, in such manner as it may deem fit.