79 . We are all exposed to the naturally occurring radiation in our daily lives. Cosmic radiation from outside the solar system is also common phenomenon. The earth's crust is radioactive, so also above the earth's surface where we fly by aeroplane, we also get doses of radiation. Medical diagnostic treatment such as x-ray, CT scan, angiography, angioplasty also radiates radioactive dose. However, the development of nuclear reactors which, for the first time, made possible the production of radioisotopes of many different elements, expanded the field of radioactive materials. Production and use of it, therefore, is bound to create a little bit of marginal radiation which seldom can be prevented . 80 . The Atomic Energy (Radiation Protection) Rules (“the Radio Protection Rules” now) were initially framed and revised in 2004. According to the Rules no person could handle radioactive material or operate any radiation generating equipment except in accordance with the terms and conditions of a licence. The Atomic Energy (Control of Irradiation of Food) Rules, 1990 (revised in 1996) seeks to regulate the irradiation of foods in the country. The provisions of the Act, statutory rules and regulations, various codes, safety standards, etc. issued by AERB buttressed by the technical assistance provided by IAEA, NEA, World Association of Nuclear Operations (WANO), etc. are being followed in India in respect of 20 operating power reactors which are existing in this country. Safeguarding the nuclear plants, radioactive materials and ensuring its physical security have therefore become a central part of nuclear law. Risks arising from NPP, do affect not merely the country which chooses to use that technology but can have catastrophic consequences to the neighbouring countries as well. Nonproliferation, disarmament and peaceful use are stated to be the three pillars of all the international conventions. Nuclear technologies and techniques, it is well accepted, can offer vital benefits for improving human well being, like health care, radio therapy, food security, agricultural advantages to the present and generation.