The document discusses demonetization in India. It defines demonetization as when a country's currency is no longer legal tender. In 2016, India demonetized its 500- and 1000-rupee notes to curb black money. This was not the first time India demonetized - it also did so in 1946 and 1978. The goals of demonetization were to counter black money, counterfeiting, and terrorist financing, while formalizing the economy and reducing cash. However, demonetization also had disadvantages like economic slowdown and problems for citizens and low-income groups.