- No workman who is employed in any industrial establishment shall go on strike in breach of contract and no employer of any such workman shall declare a lock-out-

(a) during the pendency of conciliation proceedings before a Board and seven days after the conclusion of such proceedings;

(b) during the pendency of proceedings before [a Labour Court, Tribunal or National Tribunal] [ Substituted by Act 36 of 1956, Section 17, for " a Tribunal " (w.e.f. 10.3.1957).] and two months, after the conclusion of such proceedings; [*] [ The word " or " omitted by Act 36 of 1964, Section 11 (w.e.f. 19.12.1964).]

(c) during any period in which a settlement or award is in operation, in respect of any of the matters covered by the settlement or award.