In India, right to protest is a fundamental right under Article 19 of the Constitution of India. But right to strike is not a fundamental right but a legal right and with this right statutory restriction is attached in the industrial dispute Act, 1947.
In the All India Bank Employees Association v. I. T. , the Supreme Court held,
“the right to strike or right to declare lock out may be controlled or restricted by appropriate industrial legislation and the validity of such legislation would have to be tested not with reference to the criteria laid down in clause (4) of article 19 but by totally different considerations.”
Thus, there is a guaranteed fundamental right to form association or Labour unions but there is no fundamental right to go on strike. Under the Industrial Dispute Act, 1947 the ground and condition are laid down for the legal strike and if those provisions and conditions are not fulfilled then the strike will be illegal.