The Centre may soon offload imported onions at a highly subsidised rate of Rs 22-23/kg, down around 60% from the current offered rate, as it apprehends rotting of the perishable kitchen item at ports, sources said. The central-government is currently offering imported onions to state-governments at an-average-landed-cost of Rs 58/kg for further distribution in the retail-market. It is also bearing the transportation-cost.