Saurabh Kumar made the remarks while touring the development project of a jetty at Chabahar port, state run news agency IRNA reported.
He said India was seeking investments in the second phase of the development of the jetty.
He referred to a recent trilateral agreement between Iran, India and Afghanistan on transit cooperation and said the second meeting on the issue was to be held in New Delhi soon.
The ambassador said Indian firms were keen to take part in projects in Chabahar port.
According to a local official, the jetty development project, once implemented, will raise the operational capacity of the port to 86 million tonnes. (IANS)