Section 2(18)(h) in Tamil Nadu Municipal (Non-Centralized-Regular) Public Health Establishment Regulations, 1976
(h)Service in any of the following: -(i)National War front Organisation;(ii)Camouflage Organisation;(iii)Special Organisation for the Production of War Supplies through small scale industries;(iv)Any post associated with the training of war technicians, if duty in such post is declared by the Central Government to be 'military duty';(v)Post of Special Constable on Coastal Patrol Duty.(vi)Survey of India, if the service was temporary and involved liability for service overseas.