Section 11: Communication to Trade Union and change in its registration particulars

(1) All communications and notices to a registered Trade Union shall be sent, in such manner as may be prescribed, to the address of the head office of the Trade Union as entered in the register maintained by the Registrar.

(2) The Trade Union shall inform the Registrar if the members of such Trade Union falls below ten per cent. of total workers or one hundred workers, whichever is less.

(3) The Trade Union shall inform the Registrar of any change in the particulars given by it in its application for registration and in its constitution or rules, in such manner as may be prescribed.

Source: India Code (indiacode.gov.in), the consolidated text published by the Legislative Department, Government of India. Text as updated on India Code on 14 October 2026. Words in square brackets [ ] were inserted or substituted by later amending Acts, and *** marks words omitted by an amendment. The amendment footnotes are not reproduced here. Official text on India Code.

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