Section 14(2) in Tamil Nadu District Municipalities Building Rules, 1972
(2)Windows and ventilators which open into a verandah shall be deemed to communicate with the external air, provided that such verandah is not more than 3.75 metres wide and open throughout its entire length, into space open to the sky, £he width of such open space being double width of the verandah, and in no case less than 1.75 metres.
