supply and maintenance of different types of dmg item to be used by disaster management group (dmg) of kolkata police , supply & maintenance of different types of dmg item to be used by disaster management group (dmg) of kolkata police. , heavy duty extendable ladder (use of cssr & tree cutting) , aluminium folding ladder , chain saw(for tree cutting) , portable smoke exhauster cum ventilator , spare chain for wood cutting chain saw , cordless cut off machine , under water communication system (hard wire type) (with full face mask) (for water wing) , remote controlled life buoy (for water wing) , hydraulic forcible entry tool , cordless angle grinder along with 25 no’s abrasive blade two battery and one charger , pressure test kit , battery operated air pump for boats , battery operated tower light , chain saw for single hand operation (wood cutting) , portable chain pulley system , life buoy , advance breaking system , diving mask , fibre glass pedal boat , air compressor , portable tower light , rr saw / circular saw (metal cutting) , dragon light with side belt , circular saw - metal cutting abrasiveblade (metal cutting) , portable hydraulic cutter & spreader , air plasma cutting machine , diamond chain saw , electric coil -4mm [copper] , telescopic pole pruner , hydraulic spreader , hydraulic cutter , hydraulic telescopic ram , hydraulic power pack to operated hydraulic cutter spreader and rescue ram