Psyllium (Psy) mucilage, a food grade polysaccharide is reported as a substrate for the graft / crosslinked copolymerization of various monomers. Psyllium mucilage was extracted from Psyllium husk. Graft copolymerization was found to be one of the best methods for modifying psyllium, which impart certain desirable properties to psyllium without destroying its basic properties. The grafting/crosslinking were initiated through formation of the free radical centers on the polymer backbone. Grafted / crosslinked psyllium has various applications in different areas such as in drug delivery, In Water Absorption from Oil Industries, In Tannery Waste Water Treatment, In Textile, waste water treatment and agriculture.