Novelist Mahmudul Haque died in the early hours of Monday morning, at the age of 67.
The author's nephew told Mahmudul passed away around 2am at his father-in-law's house in Lalbagh.
The reclusive writer was admitted to the National Institute of Cardiovascular Disease a week ago, but was brought back home the following day, nephew Alamgir said.
The body was being taken to Bangla Academy around 1pm, he said.
After a number of acclaimed novels Mahmudul, affectionately known as Botu Bhai, gave up writing in 1982 and retired from the public eye.
One of the renowned authors of Bangla literature, his work encompasses six novels – Anur Pathshala (Anu at School), Nirapod Tandra (Undisturbed Sleep), Jibon Amar Bon (Life is My Sister), Matir Jahaj (Clay Ship), Kalo Baraf (Black Snow) and Khelaghar (Playhouse).
He also published a volume of short stories Protidin Ekti Rumal (Everyday, One Handkerchief) and a children's book Chikkore Kabuk.
Mahmudul Haque's wife died on Dec 15 last year. He left one son and one daughter to mourn his death.