The Nashik District Onion Traders Association had given the call to not take part in auctions of the kitchen staple indefinitely till the Centre rolls back its decision, sources said. The Union government on August 19 imposed 40 per cent duty on the export of onions to increase domestic availability amid signs of increasing prices and in view of the upcoming festival season. �� Nashik Farmers Protest Against 40% Export Duty on Onions, Want Modi Government To Scrap Move.