Probashir Diganta's literary career spanned several decades, during which he wrote numerous poems, short stories, and novels. His notable works include "Kothao Dure" (Far Away), "Apon Ibhaba" (My Unborn), and "Shadukhaner Diary" (The Diary of Shadukhan). His writing often explored themes of love, loss, identity, and social justice, earning him a reputation as a bold and innovative voice in Bengali literature.