https://www.deccanherald.com/india/drdo-conducts-successful-flight-test-of-solid-fuel-ducted-ramjet-technology-958469.html
DRDO conducts successful flight test of Solid Fuel Ducted Ramjet technology
The successful demonstration of the SFDR technology will enable DRDO to develop long-range air to air missiles
solid fuel ducted ramjetflight testdrdoconductssuccessful