This session delves into the linguistic evolution of Bodish languages in Bhutan, focusing on the factors of language contact, genetic inheritance, and parallelism in linguistic drift. It explores how these languages have developed through interaction with neighboring languages and the natural evolution of dialects over time. The second part of the session looks at the reconstruction of the parent language for the modern East Bodish languages, offering insights into the historical roots and structural developments that have shaped the languages spoken today in Bhutan. Together, these discussions provide a comprehensive view of the linguistic history, structure, and dynamics of the Bodish languages in Bhutan.