The idea of nanoscale matter particles was first coined in by the late Professor of Physics, Nobel Laureate Richard P. Feynman around 1959. Physical properties of macroscopic matter drastically change at nanoscale size. Today Nanotechnology is at the forefront among new technologies. Applications of nanotechnology spread over a wide variety of fields which include Nanoelectronics, solar cells, LEDs, Batteries, super capacitators, drug delivery for cancer treatment in medicine, cosmetics, sports and biotechnology. The aim of this talk is to give an overview of this important technology.