What happens if a strike is illegal?
- A strike started in breach of the notice and other rules is illegal s. 63(1).
- Taking part in an illegal strike can bring a fine of ₹1,000 to ₹10,000, imprisonment of up to a month, or both s. 86(13).
- Concerted casual leave on a given day by fifty per cent or more of workers counts as a strike s. 2(zk).
Last checked 1 Nov 2026 · written from the official text · not reviewed by a lawyer. This explains the law in general and does not decide your case.