CERT-In is operational since January 2004. The constituency of CERT-In is the Indian Cyber Community. CERT-In is the national nodal agency for responding to computer security incidents as and when they occur.

In the Information Technology Amendment Act 2008,CERT-In has been designated to serve as the national agency to perform the following functions in the area of cyber security:

• Collection,analysis and dissemination of information on cyber incidents.
• Forecast and alerts of cyber security incidents
• Emergency measures for handling cyber security incidents
• Coordination of cyber incident response activities.
• Issue guidelines,advisories,vulnerability notes and whitepapers relating to information security practices,procedures, prevention,response and reporting of cyber incidents.
• Such other functions relating to cyber security as may be prescribed