The International North-South Transport Corridor

Picture a container of Indian goods in Mumbai, bound for Moscow. The old way loops through the Suez Canal and around Europe, and takes weeks. The INSTC cuts a shortcut through Iran, and India was one of its three founders.

Four questions guide this page. What is the INSTC? How did it begin? Why does Chabahar matter? And is the corridor fully built?

1What is the INSTC?

Think of a container of Indian goods in Mumbai. It must reach Moscow. The old way goes through the Suez Canal and around Europe. It takes weeks.

The INSTC offers a shortcut. The International North–South Transport Corridor is a 7,200-km network of ship, rail and road links. It joins India, Iran, Russia and Europe. (Source: ADB ARIC)

Goods go by sea from India to Iran. Then they cross Iran by road or rail to the Caspian Sea. From there they go by ship to Russia, and onward by rail into Europe.

Industry estimates say it can be about 30% cheaper and 40% shorter than the Suez route. (Source: Valdai Club)

• Length: 7,200 km.
• Modes: ship, rail, road.
• Link: India to Central Asia and Europe via Iran.
• Claim: 30% cheaper, 40% shorter than Suez.

2When and how did the INSTC begin?

India, Iran and Russia signed the founding agreement in St. Petersburg in 2000. They ratified it in 2002. All three are founding members. (Source: ADB ARIC)

Membership has grown a lot since then. Today there are 13 members: India, Iran, Russia, Azerbaijan, Armenia, Kazakhstan, Kyrgyzstan, Tajikistan, Turkey, Ukraine, Belarus, Oman and Syria. Bulgaria is an observer. (Source: Testbook)

In 2014, test shipments ran from Mumbai to Baku and from Mumbai to Astrakhan. They went through Bandar Abbas, Tehran and Bandar Anzali. The runs proved the idea could work.

The corridor has three route variants. A Trans-Caspian route goes by sea. A Western route uses Azerbaijan’s rail. An Eastern route crosses Central Asia.

• Signed: 2000, St. Petersburg.
• Ratified: 2002.
• Founders: India, Iran, Russia.
• Members now: 13, plus Bulgaria as observer.
• Test runs: 2014.

3Why does Chabahar matter?

Pakistan lies between India and Afghanistan. India cannot send trucks across it. So India built a door on the sea.

That door is Chabahar Port, on the Gulf of Oman in Iran. It gives India a route to Afghanistan and Central Asia that bypasses Pakistan. It anchors the southern leg of the INSTC.

The port now faces trouble. A US sanctions waiver for India’s Chabahar work expired on 26 April 2026. India said it was talking to Tehran and Washington. It called the current conflict a complicating factor. (Source: Al Jazeera)

• Port: Chabahar, Gulf of Oman, Iran.
• Value: route to Afghanistan and Central Asia without Pakistan.
• Risk: US waiver expired 26 April 2026.

4Is the corridor fully built?

No. A corridor born in 2000 is still unfinished.

The missing piece is the Rasht–Astara rail link in Iran. It is about 160 km long, on the western branch. Russia and Iran have agreed to build it. Russia said work would begin in April 2026. (Source: TASS)

Other gaps remain too. Caspian terminal capacity is thin. And US sanctions on Iran and Russia make financing risky for any firm.

For India, the INSTC is also a homegrown answer to China’s Belt and Road. It offers a cheaper path to Russia and Central Asia.

• Missing link: Rasht–Astara rail, ~160 km.
• Other limits: thin Caspian terminals, sanctions.
• Strategic role: an alternative to BRI.

5What are the exam traps?

• INSTC = India–Iran–Russia–Europe, not via China.
• Founders: India, Iran, Russia. Pakistan is not a member.
• Signed 2000, ratified 2002.
• Chabahar is on the Gulf of Oman, not the Persian Gulf proper.
• India builds Chabahar to avoid depending on Pakistan.