AR Reihana will compose a track to highlight the ‘pride and culture’ of Chennai. Called Idhu Namma Chennai, the number will feature the people who made the city proud with their deeds and endeavors. Some famous playback singers have been roped in for the project. The initiative is being done to promote Raindropss and its several charitable acts and will be launched soon. The makers are looking at the Madras Day week to release the track.