Kalpabigyaner Galpo Jamjamat (কল্পবিজ্ঞানের গল্প জমজমাট) - Science Fiction By Ghanashyam Choudhury (ঘনশ্যাম চৌধুরী)

Kalpabigyaner Galpo Jamjamat (কল্পবিজ্ঞানের গল্প জমজমাট) is a science fiction book written by Ghanashyam Choudhury (ঘনশ্যাম চৌধুরী). Ghanashyam Choudhury is an Indian Bengali writer. He wrote science fiction stories about scientist Jhalakamohan Chattoraj.

Jhalakamohan Chattoraj is an innocent Bengali scientist. However, he possess great knowledge about space. He has an assistant named Parijat Sen. These stories also have a cook named Lulluram who is also a helper of the scientist.

In these stories, the author tried not to change scientific concepts. These books are mainly written for children and teenagers.