Listen to Aaj Mausam Bada Beimaan Hai online. Aaj Mausam Bada Beimaan Hai is a Hindi language song and is sung by Sonu Nigam and Cbso Mohammed Rafi. Aaj Mausam Bada Beimaan Hai, from the album Bollywood Unplugged, was released in the year 2020. The duration of the song is 6:34. Download Hindi songs online from JioSaavn.