Trivedi, 37, who sang his hits right from "Iktara" to "Pashmina", even took to Twitter to post a message for his fans.
"Catch Amit Trivedi Live @ Gaana musical train. Board the Rapid Metro from 11:15 am. #ItsAmitTrivediLive #gaana," he wrote.
The initiative was a joint venture of Gaana.Com, India's number leading music streaming app and Rapid Metro Gurgaon.
The gig has gone viral on social media and reached 1 million audience within three hours.
The aim of the activity was to break the mundane routine and surprise the metro commuters, and create happy memories.
"We are a young and innovative organisation and we believe in supporting creative and out of box initiatives and our association with Gaana.Com is one such example," said the Rapid Metro spokesperson.