Gamblers are known for the Double or nothing concept. A similar approach is taken by a financial instrument which is pretty much unregulated by the market regulator SEBI and is popularly known as a Ponzi scheme. A name going around news sites is that of Trinamool Congress MP Sudip Bandyopadhyay. The reason for him being in news is to do with the Rose Valley chit fund scam, which in a lot of ways is a ponzi scheme, similar to the Saradha chit fund scam which was unearthed in 2013 and the Pearls Agro scam in January 2016.