In the present work an attempt has been made to fabricate and investigate the performance of flame retardant and natural fibers reinforced composites. The matrix is polypropylene (PP); sodium bicarbonate (FR1) and monoammonium phosphate (FR2) are flame retardant materials and mango seed (MSF) and zea mays (ZMF) extracted from agricultural waste are considered as natural fibers. Six samples of composites are fabricated using compression molding and their tensile properties, impact test along with flame retardancy tests are performed on the composites. Among the six samples, it observed that for a 77% and 23% increase in tensile strength for PP/MSF/FR1/FR2 and PP/ZMF/FR1/FR2 that of PP/ZMF. The designation PP/MSF composite shows good impact strength of value 3.85 J/mm2 that of other composites. Finally, it is concluded that flame resistant of 36.3% is observed for PP/MSF/FR1/FR2 and rated V-0 that of other composites. From SEM results, it is observed that the all fibers are well dispersed without clustering features of fibers. © IAEME Publication.