Chatushkone (The Quadrilateral) is a bengali language novel by Manik Bandopadhyay written in 1948. Manik Bandopadhyay (19 May 1908 - 3 December 1956) was a Bengali novelist and is considered one of the leading lights of modern Bengali fiction. During a short lifespan of 48 years, plagued simultaneously by illness and financial crisis, he produced 36 novels and 177 short stories.