The Gas Turbine Research Establishment (GTRE) has made significant strides in developing the Kaveri Derivative Engine (KDE), achieving milestones such as showcasing an afterburner variant and completing successful mission cycle testing for the Robotic Stealth Precision Attack (RSPA) UCAV. The KDE’s thrust potential is set to enhance India’s indigenous fighter capabilities, potentially allowing for reduced reliance on foreign engines. Improvements in bypass ratio and successful dry engine tests indicate advancements in performance and operational flexibility. These developments, supported by international collaborations, position India as a credible player in advanced aerospace technology, underscoring its commitment to strategic autonomy in defense capabilities.