a) Arunachal pradesh, Nagaland, Manipur, Mizoram.
b) Arunachal pradesh, Assam, Nagaland, Manipur.
c) Assam, Nagaland, Manipur, Mizoram.
d) Arunachal pradesh, Manipur, Nagaland, Mizoram.
a) Arunachal pradesh, Nagaland, Manipur, Mizoram.
b) Arunachal pradesh, Assam, Nagaland, Manipur.
c) Assam, Nagaland, Manipur, Mizoram.
d) Arunachal pradesh, Manipur, Nagaland, Mizoram.