 The investigation characterizes cellulosic fibers extracted from Piliostigma rassumosa plant for their suitability as reinforcement in polymers. Characterization tests show the fibers reinforcing capability, with a chemical analysis revealing cellulose, 60.3%, lignin, 30.76%, wax, 0.63%, ash, 1.12%, and wetness content, 6.92%. The fiber density is 1.371 gCm3, with tensile strength of 32 mPa, strain of 1.2 to 3.2%, and Young's modulus of 2 gPa. For ear-transforming for red studies prove the presence of essential biopolymers, while x-ray diffraction studies show semi-crystalline cellulose content with a crystallinity index of 56.69% and crystallite size of 5.25 nanometers. The mean microfiberla angle is 18.9 degrees, and the fibers can sustain a temperature of about 244 degrees Celsius as determined by thermogravimetric analysis. The fibers' rough surface enables good interfacial adhesion with the matrix during composite fabrication, making them potential reinforcing agents in polymer composites. This article was authored by Aromkomar and P. Sauravanan. We are article.tv, links in the description below.