Section 136(4) in The Medicinal And Toilet Preparations (Excise Duties) Rules, 1955
(4)The dealer shall permit every officer specified in sub-rule (1) to the scales, weights, measures, and gauging and proving instruments for the purpose aforesaid and shall, with his servants and workmen whenever required by such officer, weigh or measure, or assist him in weighing, measuring and gauging, as he requires, and in taking account of any such goods as aforesaid.