Aeronautical Development Agency (ADA), an Autonomous Organization under the Department of Defence Research & Development (DRDO), Ministry of Defence, Government of India, Bangalore, has released Advertisement No. ADA:ADV-135:2025 dated 19 December 2025 for recruitment of Project Scientists on Programme-based Limited Tenure Contract appointment. ADA invites online applications from eligible Indian citizens for various levels of Project Scientist posts to support critical national programmes including LCA (Tejas), LCA Mark-II, AMCA and other advanced aerospace development projects. The Candidates are strongly advised to carefully read the detailed ADA ADV-135 Recruitment 2026 notification before applying to confirm eligibility regarding age, qualification, experience, and other criteria. The closing date for online submission is 19 January 2026 (16:00 hrs). Eligible candidates must apply ONLINE only through the ADA official website. No other mode will be accepted.