Blockchain is a growing list of records, which are referred to as blocks. They are connected through cryptography. Minister KTR inaugurated international Blockchain Congress in Hyderabad, leading to a revolutionary change in creating and making records of all kinds, with total transparency. It is said to provide more privacy and is very secure. The best example of blockchain technology can be seen in cryptocurrencies. While private blockchains are useful for business purpose, Hyderabad new blockchain technology will be used widely in all public functions.