Section 2(8) in Sikkim Urban and Regional Planning and Development Act, 1998
(8)"Building operations" include:-(a)Erection or re-erection of a building or any part of it;(b)Roofing or re-roofing of a building or any part of a building or an open space;(c)Any material alteration or enlargement of any building;(d)Any such alteration of a building as is likely to affect an alternation of its drainage or sanitary arrangements o materially affect its security; and(e)The construction of a door or window opening on any street or land not belonging to the owner of the building;
