The creation of Pakistan cut India off from longstanding trade routes to Central Asia and beyond. India sees Iran as a way to reconnect, despite US sanctions.
As the United States isolates Iran by pushing countries to cut oil purchases and other commerce with the Islamic republic, India is building new trade ties there, saying Iran is its path to building the influence it needs in Central Asia and Afghanistan.
Prior to partition, the Indian subcontinent enjoyed trade and political links with Central Asia and onward into Russia and Europe. The creation of Pakistan cut India's access to the region and India has long eyed Iran as a workaround.
India's government is hosting a 14-nation conference this week to help build a new shipping network, the International North-South Corridor, that will use Iranian ports, highways, and railroads. The project aims to connect India to parts of Europe in half the time required by current trade routes through Egypt's Suez Canal.