Officials from the National Office of Buddhism brought the relic by air to Chiang Mai to be put on display at the main hall of Phra Sing Worawihan Temple.
The relic will be on display in Chiang Mai until January 19. After that, it will be taken to the southern province of Songkhla and the northeastern province of Khon Kaen before being taken to Bangkok.
Reports say that Bhutan has lent Thailand the relic as part of the celebrations of the 84th birth anniversary of His Majesty the King of Thailand last month. The relic was earlier displayed in Bangkok during the Royal birthday celebrations.