Gurgaon, April 14 (IANS): Work at the manufacturing plant of Subros at Manesar remained suspended Monday as over 500 workers staged a sit-in near the factory gate protesting suspension of 29 workers, including some union leaders, by the management Saturday.

The trade union leaders, however, called the stoppage of work at plot number 395-396 at the Industrial Model Township (IMT) a "lockout" by the company management.

"The management did not sent the buses to ferry workers to the factory. When the workers reached there on their own, they were barred entry to the company premises," Anil Kumar, general secretary, All India Trade Union Congress (AITUC), Gurgaon, told IANS.

Heavy police force has been deployed near the gate of the company, he added.

Company officials refused to comment on the issue.

Subros manufactures air-conditioners for various vehicle-manufacturers including Maruti Suzuki, Mahindra & Mahindra, Tata, Force, Renault Nissan and the like.