ISRO has crossed a major milestone in the development of CE-20 engine for the GSLV MKIII vehicle by the successful hot test for 640 seconds duration on 19.02.2016 at ISRO Propulsion Complex, Mahendragiri. Chairman, ISRO has witnessed the hot test. The test has demonstrated the repeatability of the engine performance with all its sub systems like thrust chamber, gas generator, turbo pumps and control components for the full duration. All the engine parameters were closely matching with the pre test prediction.