I'm assuming you're referring to a piece of Bengali literature. "Kalia Masan" is a short story by renowned Bengali author Rabindranath Tagore.
Unfortunately, a dark side drives the search. In Malay black magic ( sihir ) and Ilmu Kebal (invulnerability science), some believe that owning and reciting specific passages of the Kalia Masan allows one to speak to the dead or become immune to weapons. While this is heretical in mainstream Islam, scam websites exploit this by offering "secret PDFs" for a fee. kalia masan pdf
often host user-uploaded versions of Bengali literature, though some may require a subscription to view the full content. Bengali E-book Hubs: Websites dedicated to Bengali literature, such as I'm assuming you're referring to a piece of