Spodoptera frugiperda Smith, 1797 (Lepidoptera, Noctuidae) was announced as an invasive species in India as recently as 2018. Commonly it is known by the name fall armyworm. It is causing nuisance because of its highly polyphagous nature. S. frugiperda is a pest of American origin migrating to other parts of the world including Africa and Asia. In recent years, this insect has invaded many states of India including Gujarat. Mostly chemical pesticides and a few biopesticides have been the most reliable means to control the pest. This has led to resistance development in this pest. The resistance related studies against fall armyworm has been studied in countries like the USA and Brazil. Before Spodoptera frugiperda becomes havoc in the agricultural fields and turns resistant to all available insecticides; evaluating the alternative methods, their efficiency to control the pest, resistance development against newer insecticides and its mechanism needs to be studied. This would require mass rearing of pests in the laboratory. Laboratory mass rearing requires ideal biotic and abiotic factors. The diet is the chief component for the rearing of pests. In this study, four artificial diets are analyzed and compared for efficient rearing of pests in the laboratory.