Liquid chlorine cylinders delivery, fixing and arresting of emergency chlorine gas leakages duly engaging 3 nos of 11 ton gvw cargo vehicles equipped with hydraulic crane to load, unload and transport the chlorine tonners along with skilled and semi skilled labour at various reservoirs chlroination destinations approx 300 nos under the distribution system of hmwssb for a period of two years under central chlorination cell qat wing.