Historically, erotic themes in Bengali literature are not new. Ancient texts like the Mahanirvana Tantra and medieval Mangal Kavyas contained sensual undertones. However, modern Choti Golpo emerged in the late 20th century via underground booklets and magazines. With the internet boom of the 2000s, these stories migrated to websites, forums, and eventually, PDF/EPUB compilations—leading to the "Mega" collection phenomenon.