Cow is worshiped as God in India and its products are having nutritional, medical and other important uses. The microbial consortium of Cow dung is used in bioremediation of metals, pesticides, pharmaceutical products, petrochemicals and biomedical waste. Cow dung is used in composting and used as fertilizer performs activities such as Sulphur oxidation and phosphate solubilisation. The metagenomics of cow dung is studied up to some extent. Cow dung slurry contains bacteria, fungi and actinomycetes namely Faecal Streptococcus, Streptococcus, Pseudomonas Sp, Sarcina, Nocardia, Mucor Sp, Rhizopus Sp, Aspergillus, E.coli sp and Penicillium sp. It is used as mosquito repellent.