(1) The district of Jalpaiguri, Cachar (excluding the North Cachar Hills , Goalpara (including the Eastern Duars),
Kamrup, Darrang, Nowgong (excluding the Mikir Hill Tracts) Sibsagar (excluding the Mikir Hill Tract s) and
Lakhimpur (excluding the Dibrugarh Frontier Tracts): Gazette of India, 1909, Pt. 1. p. 5 and ibid, 1914, Pt . I, p.