Nano Gold is an eco-friendly, natural origin universal disinfectant used to disinfect all types of pathogenic micro-organisms. It contains 10 ppm nano gold made by nano technology process, encapsulated by a chitosan-based bio polymer, embedded on an amino acid and suspended in water. This does not contain hydrogen peroxide and it does not oxidize by sunlight. Nano Gold does not come under the Schedule of Insecticides Act (CIB)/ Pesticides regulatory. Nano Gold is called as disinfectant. It has applications in agriculture , cosmetics and immunity development.