Plasma is an ionised gas, popularly known as fourth state of matter. Plasmas are naturally occurring as well as produced in laboratories as non-thermal (cold or glow discharge) and thermal (hot or arc discharge) plasma. Cold Plasmas are versatile medium and is a rich source of energetic electrons, ions, neutral particles, radicals, reactive chemical species, UV radiation, electro-magnetic fields etc. The cold plasma technology is proposed for various societal and industrial applications such as Healthcare, Agriculture, Food, Pollution control, Material Processing, Displays, Aerodynamics etc.