Scores of municipal sanitation workers today staged a protest outside Deputy Chief Minister Manish Sisodia's official residence here, demanding "immediate" release of funds for their salaries.

They also threatened to suspend work for an "indefinite" period if their demands are not met.

"It has been two-three months that the workers have not received their salaries. Despite repeated requests, our demands have gone unheard.

"Hence, we have staged a protest here. We will call off work for an indefinite period if our demands are not met," Sanjay Gehlot, president of Mazdoor Vikas Samyukta Morcha, said.

Gehlot claimed that employees from all the three civic bodies have taken part in the strike.

Besides salaries, the employees are seeking payment of arrears, regularisation of contract-based employees and unification of the three corporations.

Workers attached to East Delhi Municipal Corporation (EDMC) had gone on strike making similar demands in October last year. But the strike was called off in the wake of a High Court order.