Ghanashyam Das alias Ghanada (Bengali: ঘনাদা), the protagonist of the Ghanada series of science fiction novels written in Bengali, is a fictional character created by Premendra Mitra in 1945. In the novels, the character fights evil and stands against international terrorism. The far-fetched stories take place in multiple international locations, and across a historical timeline. He is depicted regularly outwitting his fellow boarders of the mess-bari at 72, Banamali Naskar Lane, Kolkata (Calcutta). Ghanada was a personification of Premendra Mitra's anti-fascist humanistic ideologies and moral universe. His stories were notably accurate from a historical, geographical and scientific standpoint.