In this Act, unless the context requires otherwise,-
(1) "illegal strike" means a strike which is commenced or continued-
(a) without giving to the employer notice of strike in the prescribed form, or within fourteen days of the giving of such notice;
(b) where there is a recognised union, without obtaining the vote of the majority of the members of the union, in favour of the strike before the notice of the strike is given;
(c) during the pendency of conciliation proceeding under the Bombay Act or the Central Act and seven days after the conclusion of such proceeding in respect of matters covered by the notice of strike;
(d) where submission in respect of any of the matters covered by the notice of strike is registered under section 66 of the Bombay Act, before such submission, is lawfully revoked;
(e) where an industrial dispute in respect of any of the matters covered by the notice of strike 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 proceedings or before the date on which the arbitration proceedings are completed or the date on which the award of the arbitrator comes into operation, whichever is later;
(f) during the pendency of arbitration proceedings before an arbitrator under the Central Act and before the date on which the arbitration proceedings are concluded, if such proceedings are in respect of any of the matters covered by the notice of strike;
(g) in cases where an industrial dispute has been referred to the arbitration of a Labour Court or the Industrial Court under sections 72, 73 or 73-A of the Bombay Act, during such arbitration proceedings or before the date on which the proceeding is completed or the date on which the award of the Court comes into operation, whichever is later, if such proceedings are in respect of any of the matters covered by the notice of strike;
(h) in cases where an industrial dispute has been referred to the adjudication of the Industrial Tribunal or Labour Court under the Central Act, during the pendency of such proceeding before such authority and before the conclusion of such proceeding, if such proceeding is in respect of any of the matters covered by notice of strike:
Provided that, nothing in clauses (g) and (h) shall apply to any strike, where the union has offered in writing to submit the industrial dispute to arbitration under sub-section (6) of section 58 of the Bombay Act or section 10-A of the Central Act, and
(i) the employer does not accept the offer; or
(ii) the employer accepts the offer but disagreeing on the choice of the arbitrator, does not agree to submit the dispute to arbitration without naming an arbitrator as provided in the Bombay Act,
and thereafter, the dispute has been referred for arbitration of the Industrial Court under section 73-A of the Bombay Act, or where the Central Act applies, while disagreeing on the choice of the arbitrator, the employer does not agree to submit the dispute to arbitration of the arbitrator recommended by the State Government in this behalf, and thereafter, the dispute has been referred for adjudication of the Industrial Tribunal or the Labour Court, as the case may be, under the Central Act; or
(i) during any period in which any settlement or award is in operation, in respect of any of the matters covered by the settlement or award;
(2) "illegal lock-out" means a lock-out which is commenced or continued,-
(a) without giving to the employees, a notice of lock-out in the prescribed form or within fourteen days of the giving of such notice;
(b) during the pendency of conciliation proceeding under the Bombay Act or the Central Act and seven days after the conclusion of such proceeding in respect of any of the matters covered by the notice of lock-out;
(c) during the period when a submission in respect of any of the matters covered by the notice of lock-out is registered under section 66 of the Bombay Act, before such submission is lawfully revoked;
(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;
(e) during the pendency of arbitration proceedings before an arbitrator under the Central Act and before the date on which the arbitration proceedings are concluded, if such proceedings are in respect of any of the matters covered by the notice of lock-out;
(f) in cases where an industrial dispute has been referred to the arbitration of a Labour Court or the Industrial Court compulsorily under sections 72, 73 or 73-A of the Bombay Act, during such arbitration proceeding or before the date on which the proceeding is completed, or the date on which award of the Court comes into operation, whichever is later, if such proceedings are in respect of any of the matters covered by the notice of lock-out; or
(g) in case where an industrial dispute has been referred to the adjudication of the Industrial Tribunal or Labour Court under the Central Act, during the pendency of such proceeding before such authority and before the conclusion of such proceeding, if such proceeding is in respect of any of the matters covered by the notice of lock-out :
Provided that, nothing in clauses (f) and (g) shall apply to any lock-out, where the employer has offered in writing to submit the industrial dispute to arbitration under sub-section (6) of section 58 of the Bombay Act, or section 10-A of the Central Act; and
(i) the union does not accept the offer;
(ii) the union accepts the offer, but disagreeing on the choice of the arbitrator, does not agree to submit the dispute to arbitration without naming an arbitrator as provided in the Bombay Act,
and thereafter, the dispute has been referred for arbitration of the Industrial Court under section 73-A of the Bombay Act; or where the Central Act applies, while disagreeing on the choice of the arbitrator the union does not agree to submit the dispute to arbitration of the arbitrator recommended by the State Government in this behalf and thereafter, the dispute has been referred for adjudication of the Industrial Tribunal or the Labour Court, as the case may be, under the Central Act;
(h) during any period in which any settlement or award is in operation, in respect of any of the matters covered by the settlement or award.
(1) "illegal strike" means a strike which is commenced or continued-
(a) without giving to the employer notice of strike in the prescribed form, or within fourteen days of the giving of such notice;
(b) where there is a recognised union, without obtaining the vote of the majority of the members of the union, in favour of the strike before the notice of the strike is given;
(c) during the pendency of conciliation proceeding under the Bombay Act or the Central Act and seven days after the conclusion of such proceeding in respect of matters covered by the notice of strike;
(d) where submission in respect of any of the matters covered by the notice of strike is registered under section 66 of the Bombay Act, before such submission, is lawfully revoked;
(e) where an industrial dispute in respect of any of the matters covered by the notice of strike 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 proceedings or before the date on which the arbitration proceedings are completed or the date on which the award of the arbitrator comes into operation, whichever is later;
(f) during the pendency of arbitration proceedings before an arbitrator under the Central Act and before the date on which the arbitration proceedings are concluded, if such proceedings are in respect of any of the matters covered by the notice of strike;
(g) in cases where an industrial dispute has been referred to the arbitration of a Labour Court or the Industrial Court under sections 72, 73 or 73-A of the Bombay Act, during such arbitration proceedings or before the date on which the proceeding is completed or the date on which the award of the Court comes into operation, whichever is later, if such proceedings are in respect of any of the matters covered by the notice of strike;
(h) in cases where an industrial dispute has been referred to the adjudication of the Industrial Tribunal or Labour Court under the Central Act, during the pendency of such proceeding before such authority and before the conclusion of such proceeding, if such proceeding is in respect of any of the matters covered by notice of strike:
Provided that, nothing in clauses (g) and (h) shall apply to any strike, where the union has offered in writing to submit the industrial dispute to arbitration under sub-section (6) of section 58 of the Bombay Act or section 10-A of the Central Act, and
(i) the employer does not accept the offer; or
(ii) the employer accepts the offer but disagreeing on the choice of the arbitrator, does not agree to submit the dispute to arbitration without naming an arbitrator as provided in the Bombay Act,
and thereafter, the dispute has been referred for arbitration of the Industrial Court under section 73-A of the Bombay Act, or where the Central Act applies, while disagreeing on the choice of the arbitrator, the employer does not agree to submit the dispute to arbitration of the arbitrator recommended by the State Government in this behalf, and thereafter, the dispute has been referred for adjudication of the Industrial Tribunal or the Labour Court, as the case may be, under the Central Act; or
(i) during any period in which any settlement or award is in operation, in respect of any of the matters covered by the settlement or award;
(2) "illegal lock-out" means a lock-out which is commenced or continued,-
(a) without giving to the employees, a notice of lock-out in the prescribed form or within fourteen days of the giving of such notice;
(b) during the pendency of conciliation proceeding under the Bombay Act or the Central Act and seven days after the conclusion of such proceeding in respect of any of the matters covered by the notice of lock-out;
(c) during the period when a submission in respect of any of the matters covered by the notice of lock-out is registered under section 66 of the Bombay Act, before such submission is lawfully revoked;
(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;
(e) during the pendency of arbitration proceedings before an arbitrator under the Central Act and before the date on which the arbitration proceedings are concluded, if such proceedings are in respect of any of the matters covered by the notice of lock-out;
(f) in cases where an industrial dispute has been referred to the arbitration of a Labour Court or the Industrial Court compulsorily under sections 72, 73 or 73-A of the Bombay Act, during such arbitration proceeding or before the date on which the proceeding is completed, or the date on which award of the Court comes into operation, whichever is later, if such proceedings are in respect of any of the matters covered by the notice of lock-out; or
(g) in case where an industrial dispute has been referred to the adjudication of the Industrial Tribunal or Labour Court under the Central Act, during the pendency of such proceeding before such authority and before the conclusion of such proceeding, if such proceeding is in respect of any of the matters covered by the notice of lock-out :
Provided that, nothing in clauses (f) and (g) shall apply to any lock-out, where the employer has offered in writing to submit the industrial dispute to arbitration under sub-section (6) of section 58 of the Bombay Act, or section 10-A of the Central Act; and
(i) the union does not accept the offer;
(ii) the union accepts the offer, but disagreeing on the choice of the arbitrator, does not agree to submit the dispute to arbitration without naming an arbitrator as provided in the Bombay Act,
and thereafter, the dispute has been referred for arbitration of the Industrial Court under section 73-A of the Bombay Act; or where the Central Act applies, while disagreeing on the choice of the arbitrator the union does not agree to submit the dispute to arbitration of the arbitrator recommended by the State Government in this behalf and thereafter, the dispute has been referred for adjudication of the Industrial Tribunal or the Labour Court, as the case may be, under the Central Act;
(h) during any period in which any settlement or award is in operation, in respect of any of the matters covered by the settlement or award.
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India Code, Government of India. Text fetched 23 Oct 2026. Source metadata reports last modification: 2024-05-06. Check the linked official text and subsequent notifications when applying a provision.