The List of Professor Shonku adventures include 38 stories of Professor Shonku adventures written by Satyajit Ray. The first "Shonku" story Byomjatrir Diary (An Astronaut's Diary) was published in the Sandesh in 1965. It was a long story describing Professor Shonku's space travel. The last Shonku adventure Intelectron remained unfinished after Ray's death.
References
List of Professor Shonku adventures Wikipedia(Text) CC BY-SA