Ludhiana, May 14 -- In a pre-monsoon crackdown against mosquito breeding, the district administration has issued 39 challans to residents and property owners where dengue-causing larvae were detected on their premises.

Officials said the enforcement drive has been intensified to pre-empt any spike in dengue cases during the rainy season.

Chairing a review meeting, deputy commissioner Himanshu Jain directed officials of the municipal corporation, health department and other concerned departments to step up surveillance, carry out exhaustive door-to-door inspections and initiate stringent action wherever larvae are found.

He also asked all government departments to observe every Friday as a dry day to prevent water stagnation and curb mo...