Section 79(8)(a) in Maharashtra Factories Rules, 1963
(a)In every canteen-(i)all inside walls or rooms and all ceilings and passages and staircases shall be lime-washed or colour-washed at least once in each year or painted once in three years dating from the period when last lime-washed or painted, as the case may be;(ii)all wood work shall be varnished or painted once in three years dating from the period when last varnished or painted;(iii)all internal structural iron or steel work be varnished or painted once in three years dating from the period when last varnished or painted.