Iranian Foreign Minister Mohammad Javad Zarif, left, welcomes his Indian counterpart Subrahmanyam Jaishankar for their meeting, in Tehran, Iran.

Union External Affairs Minister Subrahmanyam Jaishankar attends a meeting with his Iranian counterpart Mohammad Javad Zarif, during a stopover, in Tehran, Iran.

Defence Minister Rajnath Singh with his Iranian counterpart Brigadier General Amir Hatami (unseen) to discuss bilateral ties between the two countries during his visit to Tehran.

External Affairs Minister S Jaishankar with his Iranian counterpart Mohammad Javad Zarif after the Raisina Dialogue 2020, in New Delhi.

Deputy Minister for Culture & Guidance, Government of Islamic Republic of Iran Mohsin Jawadi speaks during ‘CEOSpeak (A Forum For Publishing) – Over Chairman’s Breakfast’ i...

Iranian President Hassan Rouhani, right, welcomes Indian Foreign Minister Subrahmanyam Jaishankar for their meeting in Tehran, Iran.

Iranian Foreign Minister Mohammad Javad Zarif, second left, speaks with Indian Foreign Minister Subrahmanyam Jaishankar, second right, during their meeting in Tehran, Iran.

Iranian Foreign Minister Mohammad Javad Zarif, second left, speaks with Indian Foreign Minister Subrahmanyam Jaishankar, second right, during their meeting in Tehran, Iran

Iranian Foreign Minister Mohammad Javad Zarif, right, and his Indian counterpart Subrahmanyam Jaishankar, shake hands for journalists prior to their meeting, in Tehran, Iran

Prime Minister Narendra Modi shakes hands with President of the Islamic Republic of Iran Hassan Rouhani during a meeting in New York.

Prime Minister Narendra Modi and President of the Islamic Republic of Iran Hassan Rouhani during a meeting in New York.

External Affairs Minister Sushma Swaraj and Iranian Foreign Minister Mohammad Javad Zarif before a meeting, in New Delhi.

Iranian Foreign Minister Mohammad Javad Zarif before a meeting, in New Delhi.

External Affairs Minister Sushma Swaraj and Iranian Foreign Minister Mohammad Javad Zarif during a meeting, in New Delhi.

Union minister Nitin Gadkari welcomes Iranian Foreign Affairs Minister Mohammad Javad Zarif at his residence, in New Delhi.

Foreign Minister Sushma Swaraj, right, stands for photographs with her Iranian counterpart Javad Zarif before a meeting in New Delhi. Zarif is in India on a two-day visit.

Iranian President Hassan Rouhani visits the Qutb Shahi tomb at Ibrahim Bagh in Hyderabad.

Prime Minister Narendra Modi with Iranian President Hassan Rouhani at the release of a postal stamp commemorating growing economic and trade ties between India and Iran, at Hyderab...

Prime Minister Narendra Modi and Iranian President Hassan Rouhani witness signing of agreement between Ecternal Affairs Minister Sushma Swaraj and her Iranian counterpart Mohd Java...

Prime Minister Narendra Modi and Iranian President Hassan Rouhani during agreement signing ceremony at Hyderabad House in New Delhi.