He was welcomed by Pakistani officials and is set to meet Prime Minister Shehbaz Sharif, Deputy Prime Minister Ishaq Dar and other high-ranking officials.
The visit comes amid heightened Iran-Israel tensions following an Oct. 26 Israeli airstrike on Iran, which killed at least five people. Iran has since issued warnings of a potential retaliatory strike. Pakistan condemned the Israeli attack and sees this visit as a chance to enhance trade, energy, and security cooperation with Iran.
Iran has long pushed to revive a 2013 pipeline project to supply gas to Pakistan, though progress stalled in 2014 due to U.S. sanctions over Iran's nuclear program.
In a press briefing, Araghchi emphasized that Iran does not seek escalation but reserves its right to a "measured" response under the UN Charter. Pakistan's Foreign Minister Ishaq Dar echoed calls for an urgent cease-fire to reduce regional hostilities.