Dipak Chatterjee is a fictional detective character created by Bengali writer Samarendranath Pandey under his pen name Swapan Kumar.
[2] The series of his stories were well known in the sub altern culture of Kolkata[3] and most popular pulp fiction to readers of Bengali literature.
[4][5] The first story of Dipak Chatterjee, Adrishya Sanket, was published in 1953.
Dipak is a private investigator of Kolkata, British India.
[7][8] A total of 20 series of Dipak Chatterjee stories were published over three decades.