Dhaka, Dec. 26 -- The metro-rail operator has narrowly averted a fresh strike after its board approved long-pending service rules last week, easing immediate tensions with agitating staff.

However, officials and employees alike fear that delays in making the rules effective could once again destabilise operations.

Although the Dhaka Mass Transit Company Limited (DMTCL) board endorsed the service rules at an emergency meeting on December 19, the document must still undergo a lengthy vetting process by several ministries.

Employees warn that any prolonged delay could revive discontent among staff who have repeatedly protested over employment benefits and job security.

They had halted metro rail operations on December 12 to press their d...