SSDG (State e-Governance Services Delivery Gateway) is a messaging services initiative taken by the Department of Information & Technology, Government of India at the State level. At the central level it is referred to as the NSDG (National e-Governance Services Delivery Gateway). The state-level and central gateways together form a Constellation of Gateways.
SSDG is standard based Messaging and routing Switch which provides seamless interoperability and exchange of data across multiple government departments.
Read more about SSDG: Vision, Key Benefits, Other Features, PKI Implementation, Further Reading