Under Industrial Disputes Act, 1947 some protection is granted to 'Protected workman" for altering to the prejudice of such protected workman, the conditions of service applicable to him before commencement of such proceedings or by discharging or punishing, whether by dismissal or otherwise, such protected workman, save with the express permission in writing of the authority before which the proceeding is pending. Protected workman in relation to an establishment , means a workman who, being a member of the executive or other office bearer of a registered trade union connected with the establishment, is recognised as such in accordance with the rules made in this behalf. Pl refer to Section 33 (3) and (4) of the Industrial Disputes Act, 1947 and also Rule 61 of the Industrial Disputes (Central), Rules, 1971.