Nanotechnology is one of the new and fastest growing areas in Science and Engineering. The subject arise from electronics, physics, chemistry and material science to create new functional system of Nanoscale dimensions. It has been cast as the answer to many of world’s major environment and health issues. The applications of nanotechnology are extremely important and unending, particularly its role in electronics, chemical engineering, automobile sector, space, healthcare, defense, telecommunication, information technology, energy sector etc. Currently the advantage of nanotechnology overweigh the potential risks. the aim of this conference is to review the current state of knowledge in the field of nanoscience and technology along with their novel applications and challenges.