Aviation major, Qantas, which had grounded all of its planes due to staff unrest, has resumed operations after a tribunal in Australia ordered ending of the industrial action against the company.

The company announced that it has received permission from the Civil Aviation Safety Authority (CASA) to resume flights. The move comes after Australia’s national industrial tribunal; Fair Work Australia announced a ruling following its hearing of the evidences from the union, management and the government.

The tribunal said "we have decided to terminate protected industrial action in relation to each of the proposed enterprise agreements immediately". The airline was forced to ground all of its flights on Sunday. It operated its flights that were on the way while some planes were taken back from taxiways to be grounded.

"Qantas sincerely regrets the impact on customers of industrial action over recent months and looks forward to a rapid recovery and period of stability. Qantas expects to restore its schedule to normal within 24 to 48 hours," the company said in a statement.

The unions have been opposing a company’s plan under which it was planning to restructure and outsource some of its work. The unions have voiced opposition to the plan that would have resulted in about 1,000 job cuts at Qantas' Australian operations.