Listen to Rehmat Ka Dar Khula Hai online. Rehmat Ka Dar Khula Hai is an Urdu language song and is sung by Hafiz Salman Aalam. Rehmat Ka Dar Khula Hai, from the album Allah Ho Jalla Jalala Ho, was released in the year 2016. The duration of the song is 6:17. Download Urdu songs online from JioSaavn.