Sodium Casein Digest agar (Tryptone soya agar) is general-purpose media used to cultivate fastidious and non-fastidious microorganisms. This versatile medium is used to support the growth and multiplication of bacteria and fungi as well. It comprises of a pancreatic digest of casein, soybean, and sodium chloride which fulfill the requirement of microbial metabolism. Moreover, it maintains osmotic equilibrium. It has wide applications in various sectors like the pharmaceutical industry, food industry, diagnostics, biotech industry, research purposes, etc. The application of SCDA is predominantly in the Environmental Monitoring Program