In his message to the 'Global Zero Summit' in London being held from Wednesday, he said the goal of nuclear disarmament can be achieved by a step-by-step process underwritten by a universal commitment and an agreed multilateral framework that is global and non-discriminatory.
"Progressive steps are needed for the de-legitimisation of nuclear weapons. Measures to reduce nuclear dangers arising from accidental or unauthorised use of nuclear weapons, increasing restraints on the use of nuclear weapons and de-alerting of nuclear weapons are essential steps," he said.
"There is need for a meaningful dialogue among all states possessing nuclear weapons to build trust and confidence and for reducing the salience of nuclear weapons in international affairs and security doctrines," Singh said.
Extending his best wishes for the success of the conference, he said, "This campaign can be taken forward by forging a renewed consensus on non-proliferation and nuclear disarmament."
He said public awareness and support was vital to generate and sustain "An irreversible momentum until we reach our cherished goal of a world without nuclear weapons. Transforming this vision into reality is a task worthy," of the participants of the Global Zero Campaign.
The PM noted that India has been steadfast in its support for global, non-discriminatory, verifiable nuclear disarmament.
Recalling Rajiv Gandhi's visionary Action Plan for a Nuclear-Weapon-Free and Non-Violent World Order, Singh said, "This Action Plan sets out a roadmap for achieving nuclear disarmament in a time-bound, universal, non-discriminatory, phased and verifiable manner."
"We are glad to note that the Global Zero Action Plan is based on similar principle and that, like India, it has supported the global elimination of nuclear weapons in a time-bound framework," he said."I have great pleasure in conveying my greetings to the participants of the summit and to extend my support for its noble goal of a world free of nuclear weapons," he added.