Cryptocurrency is a digital currency that uses cryptography to secure transactions, allowing for anonymous and secure payments. The paper discusses the features of trading in cryptocurrency, including the lack of government involvement and the ability for users to trade anonymously. It also explains blockchain technology, which has the potential to disrupt industries like finance and banking. However, cryptocurrencies face criticism for infrastructure vulnerabilities and exchange rate volatility, as well as being used for illicit activities like money laundering. The paper covers various types of cryptocurrencies, such as Bitcoin and Ethereum, and traces the global market growth of digital currencies. It also describes the history of cryptocurrency in India.