IIT Madras-incubated start-up, Agnikul Cosmos, successfully launched the world's first rocket with a single-piece 3D printed engine, Agnilet, from Sriharikota, becoming the second private company in India to achieve this feat. The rocket, named Agnibaan, is designed to carry a payload of up to 300 kg to a 700 km orbit. The engine was developed entirely in-house using 3D printing technology, making it cost-effective and simpler to handle compared to traditional engines. This accomplishment marks a major milestone in India's space industry, as the Agnilet engine is the world's first semi-cryogenic rocket engine that uses sub-cooled liquid oxygen and regular fuel. This launch is a significant achievement for the Chennai-based start-up, which faced multiple failed attempts before their successful sub-orbital test flight at 7:15 am on Thursday. The launch was conducted with minimal presence of dignitaries at ISRO's Satish Dhawan Space Centre, without any live streaming.