Enjoy this classic romantic song 'Husn Hai Ya Koi Qayamat Hai' sung by Mohammed Rafi, Aarti Mukherjee, from the 1973 super hit movie Saudagar starring Amitabh Bachchan, Nutan, Padma Khanna. The music is composed by Ravindra Jain. Saudagar is Directed by Sudhendu Roy.