Air India is offering a ``companion scheme'' to its passengers travelling to Japan and Seoul. The scheme entitles passengers buying first/ executive class return tickets to Tokyo/Osaka for a free companion ticket. The offer is valid till August 31.

As an introductory offer on the airlines' new service to Seoul, passengers buying executive economy class return tickets are also eligible for the scheme. This offer is valid from July 4 till September 30, an Air India release said.

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