 Mazumder started her drama career through her brother, Munier Chowdhury, a playwright and novelist.She first acted in the drama "Daktar Abdullahar Karkhana", written by Shawkat Osman, which was a production of the then Iqbal Hall of the University of Dhaka.Ferdousi also acted at the very first televised drama of Bangladesh Television, "Ektala Dotala" (1964).