Strike notice procedure: union or workers must notify the employer with reasons and prescribed copies to labour authorities. Form XI prescribes the statutory notice of strike to be issued by a union or by a group of workers under section 62(1) of the Industrial Relations Code, 2020. The form requires identification of the union or five elected worker representatives, the date of notice, the employer's name, and a declaration that a strike is proposed or intended on a specified date for reasons set out in an annexure.