Santals and Oraons of Bangladesh: A Study of Changing Economic Life in the Barind Region" is an account of changing economic life of the tribals, most whom long been settled in Bangladesh. The author through his systematic training in Anthropology and International Development has presented the changing economic condition as well as socio-economic problems of the tribals and an urgency of a separate Tribal Development Plan for their development. The students of social sciences, especially, Anthropology and Development Studies along with the practitioners of both the Government and non-governmental organizations in Bangladesh, civil society and the communities/tribals itself will be benefited out of the endeavour of the author. The book contains some empirical insights/cases as well as directions which helps understand the problems of tribals in the Barind region of Bangladesh especially. Any error or unconscious mistake in the book is treated as the author's responsibility that he seeks advices and comments from general readers and scholars in the field of ethnic studies.