India, Russia to be linked by rail? Moscow floats proposal, calls it 'viable'
Russia's Deputy Prime Minister stated that a direct overland rail link connecting Russia to the Indian Ocean "should be explored," describing the idea as worth pursuing rather than announcing a firm project.
The route under discussion would run through Turkmenistan, Iran, Afghanistan and Pakistan before reaching Indian territory, with officials noting that any alignment offering Indian access would be considered viable.
The proposal is framed as a hedge against disruption at two maritime chokepoints — the Strait of Hormuz and the Bosphorus Strait — both of which have faced elevated risk amid regional conflict.
No construction plan, cost estimate, or timeline has been released; the route would also require cooperation and stability across four transit states with differing levels of political fragility.
The Ashgabat Agreement (2011) — India's Existing Multimodal Link to Central Asia and the Gulf
The Ashgabat Agreement is an international multimodal transport agreement that establishes a transit corridor linking Central Asia with the Persian Gulf, and is the principal existing legal framework — distinct from any new Russia-proposed rail line — through which India already has institutional access to this region's transport network.
Key Details
- Signed on 25 April 2011 by Uzbekistan, Turkmenistan, Iran, Oman and Qatar (Qatar later withdrew in 2013); Kazakhstan joined in 2015 and Pakistan in 2016.
- India formally acceded on 1 February 2018, after Turkmenistan (the depository state) confirmed all founding members' consent; India joined primarily to secure an alternate connectivity option given Pakistan's denial of direct land transit.
- Current membership includes Kazakhstan, Uzbekistan, Turkmenistan, Iran, India, Pakistan and Oman — covering much of the same geography (Turkmenistan-Iran corridor) now cited in the new Russian rail proposal.
Any new Russia-India rail corridor through Turkmenistan and Iran would not be built in a vacuum — it would likely need to interface with or duplicate the Ashgabat Agreement's existing multimodal transit framework, of which India, Iran and Turkmenistan are already members.
Break-of-Gauge — The Engineering Constraint Behind Any Russia-India Rail Link
A break of gauge occurs where connecting railway networks use different track widths, forcing a change of wheelsets, bogies, or transhipment of cargo at the border — a real engineering bottleneck for any corridor linking Russia to India by rail.
Key Details
- India's railway network uses broad gauge (1,676 mm), one of the widest standards in the world.
- Russia and most of the former Soviet Central Asian states (including Turkmenistan) use the 1,520 mm "Russian gauge."
- Iran uses standard gauge (1,435 mm), meaning a Russia-Turkmenistan-Iran-Afghanistan-Pakistan-India route would cross at least three different gauge systems, each requiring a break-of-gauge solution (bogie exchange, transhipment, or dual-gauge track).
The proposal's silence on cost and timeline is partly explained by this engineering reality — a genuinely seamless Russia-India rail link would require resolving multiple gauge breaks across politically sensitive territory, a far more complex undertaking than the political announcement suggests.
Maritime Chokepoints and the Logic of Overland Alternatives
A chokepoint is a narrow maritime passage whose closure or blockade can disrupt global trade and energy flows; the Strait of Hormuz and the Bosphorus are two of the most strategically sensitive such points and both directly affect Russia's and India's trade routes.
Key Details
- The Strait of Hormuz, between Iran and Oman's Musandam Peninsula, is the sole sea passage out of the Persian Gulf and carries a substantial share of the world's traded crude oil and LNG.
- The Bosphorus Strait, governed by Turkey under the 1936 Montreux Convention, is the only outlet connecting Russia's Black Sea ports to the Mediterranean and global markets.
- Overland rail corridors are proposed as chokepoint-independent alternatives precisely because they do not require strait transit, though they substitute maritime risk for cross-border political and infrastructure risk.
The Russian proposal is explicitly justified as a way to move freight to the Indian Ocean without transiting either strait, reflecting a broader pattern of states hedging against maritime chokepoint vulnerability through land corridors such as this one and the existing International North-South Transport Corridor (INSTC).
- India's rail gauge: broad gauge, 1,676 mm; Russian/CIS gauge: 1,520 mm; Iranian gauge: standard, 1,435 mm.
- Ashgabat Agreement signed 25 April 2011; India acceded 1 February 2018; current members include India, Iran, Turkmenistan, Pakistan, Kazakhstan, Uzbekistan and Oman.
- Proposed rail route spans four transit states: Turkmenistan, Iran, Afghanistan and Pakistan.
- No official cost estimate, engineering plan, or construction timeline has been released for the proposed corridor.