sentences:  Among Singphos the common surnames or family names are in Bordumsa Circle areas-
  
  Bordumsa Circle includes several Singpho villages starting from--
  
  Bordumsa Administration is headed by Additional Deputy Commissioner (ADC).The entire subdivision which comes under Changlang district is subdivided into two circles- Bordumsa and Diyun.Both Circles are headed by Circle officers or EACs, who work under the overall supervision of ADC Bordumsa.