Amazing Street Elon Musk's One-Word Tweet On ISRO's Gaganyaan Engine Test Success By NDTV Newsdesk July 15, 2021 Replying to a tweet by ISRO on Gaganyaan engine test, Elon Musk just wrote one word New Delhi: SpaceX CEO Elon Musk has congratulated India on successfully conducting the third long-duration "hot test" of Vikas engine, a key part of the ambitious Gaganyaan mission to take Indians to space in an Indian vehicle. Replying to a tweet by the Indian Space Research Organisation (ISRO) on the engine test, Mr Musk just wrote one word -- "Congratulations!" with India's flag emoticon. The ISRO said on Wednesday that it tested the human rated GSLV MkIII vehicle for engine qualification requirements for the manned mission and it was successful. ISRO said the engine was fired for 240 seconds at the space agency's Propulsion Complex in Mahendragiri, Tamil Nadu. The test objectives were met and the parameters closely matched the predictions, it added. Mr Musk, a…