Diti was born as Parveen Sultana on 31st March, 1965 in the historic town of Sonargaon, Narayanganj, a few miles south of capital city Dhaka.
Her marriage with Sohel Chowdhury ended in divorce shortly before his death. They have two children together, a daughter named Lamia Chowdhury (b.1987) and a son named Dipto Chowdhury (b.1989).
Finished her high school from Eden College and later obtained her B.A. degree from Lalmatia Women College, Dhaka.
Ami-e Ustad, a film directed by Ajmal Huda Mithu, was Diti's first film which got a theatrical release.
Received the National Film Award in a Supporting Role for the very first time, for her outstanding performance in Swami Stree (1987).