This research titled "Comparative Study of Anguli Pramana of Urdhva and Adhah Sakha as described in Brhattrayi" has been conceived and completed in the following manner: Chapter 1: Introduction, It includes concise introduction about need of such a study, concept of pramana sarira, anguli pramana, anthropology, aims and objectives and a short review of relevant previous works done in this regard. Chapter 2: Materials and methodology. This chapter includes materials of the study like journals, all sa hita of brhattrayi with commentaries and other ancient literature. Methodology includes the study design of the dissertation. Chapter 3: Review of ayurvedic literature. This chapter includes description of mana, types of measures described in ayurvedic classics, añjali and anguli pramanas, a brief description of angula as a unit of measure, etymology of the word angula, a critical analysis of different prevalent opinions regarding anguli pramana, detailed description of various contexts in which anguli pramana has been used in ayurvedic sa hitas.