A new song titled 'Darkhaast' from Ajay Devgn's upcoming action thriller film 'Shivaay' has been released. The song, featuring Devgn and actress Erika Kaar, has been composed by Mithoon with vocals by Arijit Singh and Sunidhi Chauhan. Sayeed Quadri has written the lyrics of the song. Directed by Devgn and also starring Sayyeshaa Saigal, 'Shivaay' will release on October 28.