Australia has decided to move ahead with a 5,00,000-tonne wheat shipment, which had been held up over quarantine concerns, after it resolved a long-running dispute with India over the (US) $ 90 million grain deal. "AWB has successfully resolved key issues relating to its current Indian contract and is now moving to finalise its shipping programme for our customer,' Australian Wheat Board spokesperson Peter Mcbride said here today. About 1,00,000 tonnes of the contract has already been delivered to the southern Indian ports of Tuticorn and Chennai.