IHG (InterContinental Hotels Group) the world?s largest hotel group by number of rooms, has signed a new franchise agreement with Airport Hotel Limited that will see the Old Manor House at Plaisance Airport become Holiday Inn Mauritius ? Plaisance Airport. The 140 room property will be the first Holiday Inn to open in Mauritius and will join IHG?s InterContinental Resort Mauritius which opened in 2009.