Ban Luang is a district in the western part of Nan province, northern Thailand. Originally the area was Tambon Suat of Mueang Nan distriā¦Ban Luang is a district in the western part of Nan province, northern Thailand. Originally the area was Tambon Suat of Mueang Nan district. It was created as Ban Luang Minor District on 15 May 1975, when three tambons, Pa Kha Luang, Suat, and Ban Phi, were split off from Mueang District. It was upgraded to a full district on 20 October 1993.