Kaustubh Deka teaches at the Department of Political Science, Dibrugarh University, Assam.
Formerly he was with the Centre for North East Studies and Policy Research, Jamia Milia Islamia, New Delhi. He has been a Fellow at the Hindu Centre for Politics and Public Policy, Chennai, where he looked into the issue of youth and political participation in the context of India's Northeast. He holds a doctorate from the School of Social Science, Jawaharlal Nehru University, New Delhi.
His academic interest includes besides others, issues of ecological politics in Northeast India, trends of youth politics and identity assertion in the region as well as inquiries into understanding the category of Northeast India.