By Somjit Rungjamrasrassamee
The 73 returned on Monday follow 71 sent back in October 2016.
They crossed the border at Ban Rim Moei in Mae Sot district following a ceremony at which Third Army Region deputy chief Major General Supachoke Thawatpeerachai presided.
The 73 came from camps in Tha Song Yang, Phop Phra and Umphang districts in Tak and another in Kanchanaburi.
They were driven across the border in vans to be greeted in Myawaddy by Kayin state Chief Minister Nann Khin Htway Myint and other senior officials.
Myanmar Ambassador U Myo Myint Than witnessed the event and thanked the Thai government and agencies involved, including the United Nations High Commissioner for Refugees and non-governmental organisations, for taking care of the refugees.