Announcing the date for a crucial test in preparation for India’s human spaceflight mission, space minister Jitendra Singh said on Tuesday that Isro will launch the ‘Gaganyaan’ test vehicle space flight (TV-D1) on October 21. Isro will also test the efficacy of the crew escape system, which is the crucial part of the ‘Gaganyaan’ mission, resulting in unmanned and manned missions to outer space by 2024.