Examine how US-Iran sanctions regimes affect India's energy security and strategic projects such as Chabahar Port.

US sanctions on Iran are unilateral, not UN-mandated, yet their secondary reach binds third-country firms. The August 2026 "Operation Economic Outcast" round, which designated nearly 60 entities including four India-based petroleum traders, shows how this extraterritorial architecture constrains India's energy and connectivity choices [1][2].

Impact on energy security

• Iran, once among India's top crude suppliers, was effectively dropped after the 2019 withdrawal of US waivers, forcing costlier import diversification toward the Gulf, Russia and the US; India still imports over four-fifths of its crude [4].
• Loss of rupee-rial payment and freight-insurance concessions raised the landed cost of imports, feeding inflation and the current account deficit.
• Designation of Indian trading and customs-broking firms exposes private players to loss of dollar-clearing and US banking access, chilling legitimate petrochemical trade [1].
• Cushions exist: strategic petroleum reserves at Visakhapatnam, Mangaluru and Padur, ethanol blending and gas-based substitution reduce, but do not remove, exposure [5].

Impact on Chabahar and connectivity projects

• Chabahar, developed by India Ports Global, survived on a special IFCA exception granted in 2018 for Afghanistan reconstruction; its revocation and subsequent short-duration waivers make investment horizons uncertain [3].
• Waiver-dependence deters banks, insurers and equipment suppliers, slowing capacity expansion and the linked Chabahar-Zahedan rail line.
• Spillovers hit the INSTC corridor to Central Asia and Russia, weakening India's counter to alternative regional corridors.

Strategic and legal friction

• India has consistently held that it recognises only UN Security Council sanctions, not unilateral ones — a position it must assert without destabilising a deepening India-US partnership [3].

Sanctions thus impose a compliance cost on India rather than a strategic surrender. The way forward lies in negotiated, longer-duration carve-outs for Chabahar, stronger OFAC-screening and due-diligence by Indian exporters, diversified supply and payment channels, and accelerated clean-energy transition — securing energy independence while preserving India's strategic autonomy.