Section 2(21) in Tamil Nadu Combined Development and Building Rules, 2019
(21)"Construction" means any erection of a structure or a building, including any addition or extension thereto either vertically or horizontally, but does not include, any reconstruction, repair and renovation of an existing structure or building, or construction, maintenance and cleansing of drains and drainage works and of public latrines, urinals and similar conveniences or the construction and maintenance of works meant for providing supply of water for public or the construction or maintenance, extension, management for supply and distribution of electricity to the public or provision for similar facilities for publicity;
