The Brihanmumbai Electric Supply and Transport (BEST) undertaking on Wednesday invoked the Maharashtra Essential Services Maintenance Act, 2023, as 12 employee unions have threatened to go on an indefinite strike from the midnight of June 18 over their long-pending demands.

BEST union leader Uday Ambonkar said that if BEST services were being treated as essential, "It was high time the employees too were treated at par with the BMC".