Section 7
[(b) by an employed person or any legal practitioner or any official of a registered trade union authorised in writing to act on his behalf or any Inspector under this Act, or any other person permitted by the authority to make an application under sub-section (2) of section 15, if the total amount of wages claimed to have been withheld from the employed person exceeds twenty rupees or from the unpaid group to which the employed person belongs or belonged exceeds fifty rupees, or]