Polypropylene based commodity polyolefins are widely used in packaging, manufacturing, electrical,  pharmaceutical and other applications. The aim of the present work is to study the effect of grafting of acrylic acid on the biodegradability of acrylic acid grafted polypropylene. The effect of different conditions showed that grafting percentage increased with increase in monomer concentration, radiation dose and inhibitor concentration but decreased with increase in radiation dose rate. The maximum grafting of  159.4% could be achieved at optimum conditions. The structure of grafted polypropylene films at different  degree of grafting was characterized by EDS,FTIR,TGA,DSC,SEM and XRD.EDS studies showed that  the increase in acrylic acid grafting percentage increased the hydrophilicity of the grafted films. FTIR studies indicated the presence of acrylic acid on the surface of polypropylene film. TGA studies revealed that thermal stability decreased with increase in grafting percentage. DSC studies showed that melting temperature and crystallinity of the grafted polypropylene films lower than polypropylene film. SEM studies  indicated that increase in acrylic acid grafting percentage increased the wrinkles in the grafted films. The maximum biodegrade ability could be achieved to 6.85 % for 90.5 % grafting. This suggested that micro organisms present in the compost could biodegrade acrylic acid grafted polypropylene.