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Chennai-based Agnikul Cosmos has successfully test-fired three semi-cryogenic rocket engines simultaneously, marking India's first clustered semi-cryogenic engine test by a private firm. This achievement, supported by ISRO and IN-SPACe, showcases India's growing capabilities in rocket technology and advanced manufacturing. The engines, entirely 3D-printed, were ignited together as an integrated propulsion system, crucial for enhancing thrust in future launch vehicles.