Our nuclear weapons are meant purely as a deterrent against nuclear adventure by an adversary … Atal Bihari Vajpayee There are many optimistic people in the world who think that all the nuclear nations will, one day, bury nuclear weapons deep down into the earth and will forget about it too. Not many of us know about a fact that around 64 years ago, the world was free of nuclear weapons, but after the production of some 1,40,000 of these artifacts of mass destruction, there seems to be a significant shift in the role some Governments across the world whose leaders have now understood that nuclear weapons are intrinsically dangerous and they pose an unparalleled threat to the very existence of humankind. These learned souls have also realized that these weapons of mass destruction do not enhance a country's security but, rather, imperil the survival of all nations. Alfred Nobel, in whose memory the famous Nobel Prizes are awarded every year, had said : ‘ ​​Let a sword of d​a​mocles hang over every head and you will witness a miracle. All