India, Jan. 14 -- India on Wednesday urged its nationals to leave Iran and advised against travel to the country amid mounting regional tensions over Tehran's crackdown on nationwide protests that have killed hundreds and fears of possible US intervention.

An advisory issued by the Indian embassy in Tehran urged nationals, including students, businesspeople, pilgrims and tourists, to leave the country by available means of transport, including commercial flights, because of the "evolving situation".

Another advisory issued by the external affairs ministry in New Delhi strongly advised Indians to avoid travel to Iran until further notice in view of ongoing developments. This was a reiteration of an advisory issued by the ministry on Janu...