The demand for signals a larger trend: Bengali readers are moving digital. Young readers in Dhaka, Kolkata, and the global diaspora want instant access. They don't want to wait for international shipping.
If you are interested in this specific flavor of Indian horror, I recommend pivoting your search to verified authors who write in the same vein. You will have better luck finding their work (either as physical books or occasional digital copies): sayak aman horror books pdf
: A horror-thriller novel blending dark elements with a gripping narrative. It is stocked at Amazon India Andhare Joler Kolahal The demand for signals a larger trend: Bengali
: A sequel in his horror series, frequently cited among his top works. Mrito Pechader Gaan If you are interested in this specific flavor
: A popular horror novel frequently searched for and available on platforms like Scribd : A mystery/thriller title. Aarin O Adim Debotar Utthan : A fantasy thriller involving ancient deities. Where to Find Them