The Head of the United Nations’ nuclear watchdog Rafael Grossi and Iran’s Nuclear Chief Mohammad Eslami have reached an agreement that will likely prevent another crisis looming over the prospect of restoring Iran’s 2015 nuclear deal. Iran nuclear programme, which was launched in the 1950s with the US cooperation, lost the western support after the Islamic revolution of 1979 and became increasingly controversial from early 2000s onwards. Consequently, Iran endured multi-layered UN and Western sanctions for a number of years. Eventually, the crippling sanctions and international diplomatic efforts convinced Iran to conclude the historic nuclear deal with P5+1 powers in July 2015. Much to the dismay of international community, the-then President Trump abandoned the Iran nuclear deal in May 2018 due mainly to political reasons rather than Iran’s non-compliance. The US unilateral act left the deal and non-proliferation regime as well as regional peace and the US world leadership in peril. By the nuclear deal, Iran accorded to significantly limit the nuclear programme in return for termination of the western sanctions. The JCPOA binds Iran in four areas of nuclear activity, viz. stockpiling, enrichment, centrifuges, and inspections. The agreement reduces Iran’s Uranium stockpile to under 300 kg and its enrichment level at 3.67 percent. It reduces the centrifuges to 5,060 dismantling more than 13,000 remaining centrifuges. In addition, the agreement gives the IAEA full access to Iran’s nuclear facilities to monitor the implementation of the nuclear deal. The deal provides that, in return, all previous sanctions imposed by the UN, US and EU to target Iran’s nuclear programme would be terminated. Iran nuclear deal was endorsed by the UN Security Council through Resolution 2231 on July 20, 2015. Since 2018, after the US withdrawal from Iran Nuclear Deal, Iran has been facing the US sanctions. However, the recent agreement between the International Atomic Energy Agency (IAEA) and Iran will have significant impact on the revival of Iran Nuclear Deal.