In March, the armed forces had conducted the successful test launch of the nuclear-capable Shaheen 1-A medium-range ballistic missile.
Iran has demanded a lifting of all sanctions, but the Biden administration says it is only discussing measures imposed by Trump as part of the withdrawal from the nuclear deal.
While Iran maintains its program is peaceful, regional rival Israel has repeatedly warned it won't allow Tehran to build a nuclear weapon and is suspected of launching attacks targeting its program.
India's remarks appeared to be a veiled reference to China and its 'all-weather ally' Pakistan as concerns have been raised over the export of nuclear materials to Islamabad by Beijing.
Kazem Gharibabadi, Iran's envoy to the IAEA, said in a tweet that Rafael Grossi is arriving Saturday, and will travel to Tehran this afternoon.
Its director-general, Rafael Mariano Grossi, said he was willing to travel to Iran to meet the recently elected government for talks on the issue.
Pakistan achieved nuclear capability 'within seven years' of India's first test in 1974: President Arif Alvi
It was among Pakistan's big achievements since it became independent, President Arif Alvi said on Saturday.
US Strategic Command tweeted a link Wednesday to a story in The New York Times on the federation's findings, which were published this week.
Last month, the influential sister of North Korean leader Kim Jong Un dismissed prospects for an early restart of the nuclear diplomacy.
The comments by Iran's parliament speaker Mohammad Bagher Qalibaf, aired by state TV, further underscored the narrowing window for the US and others to reach terms with Iran.
Japan bans all trade between the countries and prohibits North Korean-registered ships from entering its ports, except for humanitarian purposes. It also bans flights between the countries.
The decision to conduct tests was taken by Vajpayee's predecessor P V Narasimha Rao, but could not be executed as he lost the 1996 polls.
In a speech to students at Geneva University, Antonio Guterres presented a new disarmament agenda to face challenges emerging in a world where "Cold War tensions have returned."
North Korea has justified its nuclear strategy citing the presence of nearly 30,000 US military personnel in South Korea.