Section 10(1) in The Standards of Weights and Measures (National Standards) Rules, 1988
(1)Subject to the provisions of sub-rule (2), the CGS (i.e., centrimetre, gram, second) units specified in Schedule VII, and the units of weights and measures specified in Schedule VIII (being units outside the SI), shall not ordinarily be used except for the purpose of scientific and technological research and no such unit shall ordinarily be used for the purpose of teaching.
