20 Ti Goyenda Upanyas is a popular Bengali language detective genre novel book authored by the well-known writer Sri Swapan Kumar. Sri Swapan Kumar is a leading writer in Bengali literature who wrote a lot of surprising detective novels in Bengali literature. The book 20 Ti Goyenda Upanyas is one of his remarkable creations. If you wish to read this interesting book, I assure from here you can start your reading right now. For offline reading, I have also added a PDF copy below.