Section 24(2)(d) in The Maharashtra Recognition of Trade Unions and Prevention of Unfair Labour Practices Act, 1971
(d)where an industrial dispute in respect of matter covered by the notice of lock-out has been referred to the arbitration of a Labour Court or the Industrial Court voluntarily under sub-section (6) of section 58 or section 71 of the Bombay Act, during the arbitration proceeding or before the date on which the arbitration proceeding is completed or the date on which the award of the arbitrator comes into operation, whichever is later;