Blockchain is an emerging technology that can be used wherever genuinity has to be established in transactions. The data stored using Blockchain technology cannot be altered. TNeGA will build a Blockchain platform for Tamil Nadu, at a cost of approximately Rs.40.80 crore, to be offered as a service to all Government departments, without them having to maintain a Blockchain node. They shall be able to verify their data in the Blockchain independently without hosting the node. Blockchain technology will provide a tamper proof and immutable source of truth in independent mathematical verification of the integrity/authenticity of any digital data without dependence on a third party. It also provides cyber security and data integrity to applications focused on citizen engagement and experience.