The aim of this study was to develop biodegradable films derived from plants and to understand the effect of xanthan gum as a thickening agent which provides not only stickiness among starch particles, binding property but also increase in strength of the film. This method uses the starch material from plant sources as base by additives and xanthan gum the film is produced through heat treatment. As the raw materials are of plant sources and easily available it is easily degraded by microbes. This study helped to understand the physical, structural, morphological and biodegradation properties of the film. The method uses the commercially available xanthan gum powder which is incorporated into to the starch obtained from potato and corn. The treatment results in extraction of thin film through flat molds. The obtained film was tested for its pH, thickness and extensibility by alveograph. The awareness over non-biodegradable petrochemical based plastics has been increasing and giving various opportunities to explore the fields for producing biodegradable and plant derived products. Because of the availability, film forming ability, low cost production, easy disposal properties starch is selected for obtaining films from plant-based sources.