Section 10(1)(c) in Tamil Nadu Town and Country Planning Act, 1971
(c)from time to time declare their intention to specify any area as the site for a new town, after taking into consideration-(i)the population of such area which shall not be less than the minimum and more than the maximum as may be prescribed;(ii)the development of such area for industrial or commercial purposes;(iii)the fact whether such area has been reserved or designated in a regional plan as the site for a new town; or(iv)such other matters as may be prescribed; and copies for such notification shall be sent to the local authorities which are situated in the area so specified.