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This study dealt with some important somatometric features of the adult representatives, both male and
female of “Plain-Tiwa” people inhabiting in “Sidhabari” and “Manipur” villages of the Morigaon
District of Central Assam. Study includes the measurements of Stature, Height Tragus, Sitting Height,
Height Acromion, Height Dectylion, Total Leg Length, Biacromial Breadth, Bicristal Breadth, Head
Length, Head Breadth, Head Height, Bizygomatic Breadth, Nasal Height, Nasal Breadth, Total Facial
Height, Upper Facial Height, Head Circumference, Girth of Biceps, Girth of Calf and Weight. Study
covered 100 male and 100 female individuals. From the mentioned somatometric-parameters various
Indices are calculated namely- Relative Upper Extremity Index, Length-Height Index of Head, Breadth-
Height Index of Head, Total Facial Index, Upper Facial Index, Nasal Index, Relative Sitting Height
Index, Relative Lower Extremity Index, Relative Biacromial Breadth Index, Relative Bicristal Breadth
Index, Maximum Head Breadth Index, Cephalic Index and Stature index.
The study revealed an important database of the “Plain-Tiwa” community for the Physical and Forensic
Anthropologists as well as Historians.
Keywords: - Somatometric, Tiwa, index, physical.