Section 28(3) in The Mineral Conservation And Development Rules, 1988
(3)Where different reefs, lodes, veins or mineral beds or deposits overlie or run parallel to one another, the workings of each reef, lode, vein or mineral bed or deposit shall be shown on separate plant and/or longitudinal section or sections; however, if two reefs, lodes, veins, or mineral beds or deposits are so situated in relation to each other that the parting between workings made therein is less than ten metres at any place, such workings shall also be shown on a combined plan and/or longitudinal section, as the case may be, in different colours.
