- Each local area shall be generally divided into vaccination circles, so that each circle constitutes -(i)in the case of rural areas a Thana; and(ii)in the case of urban areas a ward or wards comprising a population of 80,000 or the whole town if the population is less than 80,000.Each Circle shall be sub-divided into vaccination sub-circles of not more than 40,000 population or sixty villages (whichever is less) in the rural areas and 20,000 population in the urban areas.
