This page contains DRDO placement papers from 2025 with current year questions, solutions, and exam patterns.
| Section | Questions | Time | Difficulty |
|---|
| Technical | 40-50 | 60 min | Medium-Hard |
| Aptitude | 20-25 | 30 min | Medium |
Q1: Missile Guidance Systems - 2025 Real Question
Problem: Explain the working principle of inertial navigation system (INS) used in missile guidance.
Solution:
INS uses accelerometers and gyroscopes to continuously calculate position, velocity, and orientation.
1. Accelerometers measure acceleration
2. Gyroscopes measure angular velocity
3. Integration of measurements provides position and attitude
4. No external references required (self-contained)
- Technical Section is Critical: Must perform well in defence technology and engineering fundamentals
- Aptitude Section: Important for overall performance
- Time Management: 40-50 technical questions in 60 min + 20-25 aptitude in 30 min
- Success Rate: Only 10-15% cleared written exam and advanced to interviews
- Platform: DRDO written examination
- Focus Areas: Defence technology, missile guidance systems, recent developments, engineering fundamentals
- Enhanced Emphasis: Optimal solutions and recent developments knowledge
Based on recent candidate experiences from 2025 DRDO interviews:
2025 Interview Process:
- Written Examination (90 minutes): Technical (40-50) + Aptitude (20-25)
- Technical Interview (60-90 minutes): Defence technology concepts, missile guidance systems, recent developments, engineering fundamentals, problem-solving
- HR Interview (30-45 minutes): Behavioral questions, company fit, motivation, defence technology passion
2025 Interview Trends:
- Increased emphasis on recent developments and defence technology innovations
- More focus on optimal solutions and modern defence technologies
- Enhanced behavioral questions about innovation and defence technology passion
- Questions about recent developments and defence technology applications
Common 2025 Interview Topics:
- Technical: Defence technology, missile guidance systems, recent developments, engineering fundamentals
- Aptitude: Quantitative reasoning, logical reasoning
- Behavioral: Problem-solving approach, defence technology passion, teamwork, motivation
Success Tips:
- Strong technical performance is essential - master defence technology and engineering fundamentals
- Understand missile guidance systems and recent DRDO developments
- Practice problem-solving in defence technology domain
- Prepare behavioral examples demonstrating defence technology passion
- Understand DRDO’s recent projects and defence technology programs
- Practice explaining complex technical concepts clearly
For detailed interview experiences from 2025, visit DRDO Interview Experience page.
- Master Technical Fundamentals: Focus on defence technology, missile guidance systems, recent developments - study thoroughly
- Engineering Fundamentals: Strong understanding of engineering fundamentals relevant to defence technology
- Practice Previous Year Papers: Solve DRDO written exam papers from 2020-2025 to understand evolving patterns
- Time Management: Practice completing 40-50 technical questions in 60 minutes
- Aptitude Practice: Practice quantitative and logical reasoning
- Recent Developments: Deep understanding of DRDO’s recent developments and defence technology innovations
- Problem-Solving: Practice solving complex technical problems in defence technology domain
- Behavioral Preparation: Prepare examples using STAR format - defence technology passion, problem-solving
- Mock Tests: Take timed practice tests to improve speed and accuracy
- DRDO Projects: Stay updated with DRDO’s recent projects and defence technology programs
Practice 2025 papers to stay updated with latest patterns and prepare effectively!