[3] The establishment of a training center for weights and measures in India was considered essential even before the introduction of the Metric system.
Several states, particularly Maharashtra and Bihar, took the initiative to train their enforcement officials to maintain uniformity in standards and safeguard consumer interests.
[4][5] In 1962, the Government of Bihar established the "All India Training Institute of Weights and Measures" in Patna as a centrally sponsored scheme.
[4][6] The IILM has since evolved into a premier institution, providing specialized training in legal metrology to officials from India and other countries.
The institute implements OIML recommendations as per the country's requirements and maintains traceability up to the level of reference standards.