The biennial meet's ninth edition, to be held in Kochi by September end, will see the biggest-ever delegate contingent from 10 prized traditional markets - including the US, Canada and Australia.
The new participants include China, Japan, South Korea, Saudi Arabia, Mexico, Georgia, Chile, Greece, Iran and Botswana.
As many as 57 countries and 20 Indian states will explore tourism opportunities in 'God's Own Country' at the three-day event organised by the Kerala Travel Mart Society in association with the state government's Department of Tourism.
Domestic participation has been buoyed as well with around 1,300 domestic buyers expected to participate this year.
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"Moreover, the increase in registrations from the 10 conventional markets including United States, Canada and Australia is further proof of the KTM's growing profile," he added.
KTM will witness 25,000 business meetings apart from other non-scheduled meetings.
The mart is designed to facilitate B2B networking and interactions among travel industry professionals and entrepreneurs from Kerala and across the world, thereby providing a vehicle for business linkages between the state's tourism fraternity and the international travel market.
Organisers said KTM 2016 will focus on the themes of 'Responsible Tourism' and the 'Muziris and Spice Route'.
The event is organised as a prelude to the Mart.