HistoryBefore metrication, the government of India followed the Indian Weights and Measures Act passed in 1870 which used the British Imperial system. However, many other indigenous systems were in use in other parts of the country and this was a constant problem with government officials and the public at large.
P N Seth was the founder and secretary of the Indian Decimal Society, whose aim it was to push for the introduction of the metric system in India. P N Seth was assisted by others in the society, such as Professors Dr H L Roy, Dr S K Mitra, and P C Mahalanobis, and other leading Indian scientists. Since 1930, they advocated for discarding the old chaotic system by writing in newspapers, journals, participating in debates and distributing literature.
During the post-WW II interim government, there were attempts to introduce some standardisation in weights and measures but the conservative section of the ruling party never allowed it to be passed. Then outstanding scientific personalities and public figures were mobilised by the Indian Decimal Society. P N Seth put forward a scheme for metrification of currency on 17 January 1944, which was finally adopted in Indian Parliament in 1955.