India has urged its citizens in Iran to remain indoors for the next 48 hours, avoiding all power and military installations, as US President Donald Trump warned of potential strikes.
The Indian embassy in Tehran issued an urgent advisory, directing nationals to stay put and coordinate any highway movement with the embassy.
Over 9,000 Indian nationals, mostly students, are in Iran, and 1,862 have returned via Armenia and Azerbaijan.
The US has threatened to target civilian infrastructure, including bridges and power plants, in Iran.
Indian students sheltering in embassy-hired hotels have been advised to stay indoors and maintain contact with embassy teams.
With the US deadline for a deal to end hostilities set to expire, Trump warned that a whole civilization could die tonight, but also expressed hope for a revolutionary deal.