A) Assam,Bihar,Sikkim and West Bengal
B) Bihar,Meghalaya,Sikkim and West Bengal
C) Arunachal Pradesh,Assam,Sikkim and West Bengal
D) Bihar,Assam,Sikkim and West Bengal
A) Assam,Bihar,Sikkim and West Bengal
B) Bihar,Meghalaya,Sikkim and West Bengal
C) Arunachal Pradesh,Assam,Sikkim and West Bengal
D) Bihar,Assam,Sikkim and West Bengal