Subrat Shandilya, a young aerospace engineer from Bihar, is developing a compact jet engine. His startup, Shandilya Aerospace, aims to create a lower-cost propulsion option for UAVs. The Bihar government has approved the project and will provide phased seed funding. Metal 3D printing is a key technology for rapid prototyping and efficient production. A jet engine manufacturing facility near Rajgir is planned if prototype development succeeds.