Language, linguistic dialects, and culture are the important markers of ethnic identity. They reflect the diversity of a society, the stability and peace of which depend on how this diverseness is accommodated within a pluralistic structure of both the state as well as the society. In multiple societies, ethnicity and ethnicity politics are significant phenomena. However, ethnic politics is also one of the key causes of internal instability in many developing countries. Ethnic politics sometimes leads to ethnic strife, which is seen as a battle between ethnic groups leading to inherent instability within the whole political system, and with a potential to spill over to other regions as well. Our study is focused on the ethnic and linguistic diversity, and political representation of various ethnic communities in Indian border state of Arunachal Pradesh. In this research we will try to explore the question of uneven representation of ethnic communities of this state and whether this uneven distribution of power has the potential of kickstarting an ethnic strife.