India's Stake: The Arabian Sea Economy and Its Dependence on Strait Transit
India sits at the northwestern edge of the Indian Ocean, closer to the Persian Gulf than any other major Asian economy except China. This geography is an asset — shorter transit times, lower shipping costs, access to Gulf labor markets that have sustained remittance flows for decades — and a vulnerability. The same proximity that makes Indian trade with the Gulf efficient makes Indian energy security exposure to Hormuz direct and consequential.
India imports approximately five million barrels of oil per day, making it the third-largest oil importer in the world. The Gulf share of this import volume is typically between 60 and 65 percent, depending on annual contract mix and spot purchase decisions. Saudi Arabia, Iraq, and the UAE are consistently among India’s top three or four crude suppliers. The refining infrastructure that processes this crude — the large coastal refineries at Jamnagar, Mangalore, Kochi, and elsewhere — is designed around the gravity and sulfur profiles of Gulf crude. Substituting alternative crude sources at scale would require either blending programs that reduce refinery yields or capital-intensive modifications to existing units.
The remittance dimension adds a human scale to the economic exposure. Approximately nine million Indian workers are employed in Gulf Cooperation Council countries, and their remittances represent one of the largest inflows of foreign exchange in the Indian economy. A Hormuz closure severe enough to disrupt Gulf economic activity — and a sustained closure would, by reducing oil revenues and increasing costs throughout Gulf economies — would affect the employment conditions of this population and the remittance flows their families depend on. The economic link between Hormuz transit and Indian household income is mediated through several steps but is real.
India’s diplomatic posture toward the Gulf is shaped by these exposures. New Delhi has maintained functional relationships with both Iran and Saudi Arabia through periods when the two powers have been in active regional competition. India abstained on UN resolutions condemning Russia’s invasion of Ukraine partly for reasons related to its relationships with both Moscow and the Gulf states — maintaining energy supply flexibility and avoiding the kind of geopolitical alignment that would complicate its Gulf relationships was a consideration in a decision that was overdetermined by several other factors as well. The pattern is consistent: India does not choose sides when the costs of choosing include disruption to its Gulf energy and remittance flows.
The Indian Navy’s posture in the Arabian Sea has been shaped by Hormuz exposure in ways that are sometimes underdiscussed in analyses of Indian naval development. The expansion of Indian naval capabilities — frigates, destroyers, maritime patrol aircraft, and a submarine fleet that remains largely conventional but is growing — is oriented toward several missions simultaneously. Anti-piracy operations in the western Indian Ocean, presence signaling against Chinese naval activity in the Indian Ocean region, and protection of the sea lanes from the Gulf are all components of the same force development logic. India cannot independently guarantee Hormuz transit against Iranian interdiction. It can complicate any Iranian calculus that treats the sea lanes from Hormuz to Indian ports as uncontested.
The relationship with Iran is the most complex element of India’s Gulf positioning. Iran has been an important oil supplier when sanctions created discount pricing that Indian refiners have been willing to accept. The infrastructure implications of those purchases — Indian refineries that have configured themselves for Iranian crude grades — create switching costs when sanctions force supply changes. India’s investment in the Iranian port of Chabahar, designed partly to give India overland access to Afghanistan and Central Asia bypassing Pakistan, represents a strategic bet on engagement with Iran that has produced limited returns but that New Delhi has been reluctant to abandon entirely.
What happens to India in a Hormuz crisis is what happens to any economy with 60% of its energy imports running through a single corridor and no credible alternative supply path that can be activated quickly. The exposure is managed, not eliminated. The management depends on others keeping the strait open.