Download free DRDO placement papers 2025 PDF with previous year questions and solutions. Access exam pattern, eligibility criteria, interview process, and complete preparation guide for defence research roles.
DRDO (Defence Research and Development Organisation) is India’s premier R&D organization for defence research. Founded in 1958, DRDO develops defence technologies, weapons systems, and military equipment. DRDO operates 52 laboratories and establishments across India, working on cutting-edge defence technologies including missile systems, radar systems, and advanced weapon platforms. DRDO recruits scientists and engineers for various defence research programs, offering opportunities to work on critical national security projects.
Headquarters: New Delhi, India
Employees: 30,000+ scientists and engineers
Industry: Defence Research, Aerospace, Government
Type: Public Sector Undertaking (PSU)
Download free DRDO placement papers 2025 with previous year questions, detailed solutions, exam pattern, and complete preparation guide. Access DRDO last 5 years placement papers with solutions PDF download and practice with solved questions covering technical subjects, aptitude, and interview preparation.
Academic Requirements
Marks: 65% or 6.5+ CGPA in 10th, 12th, and graduation
Degree: B.E./B.Tech/M.E./M.Tech/M.Sc/PhD in relevant engineering or science disciplines
Year of Study: Final year students and recent graduates
Backlogs: No active backlogs at the time of application
Branch Eligibility
Eligible Branches: Aerospace, Electronics, Mechanical, Computer Science, Electrical, Civil, Physics, Chemistry, Materials Science
Specialization: Defence technology, missile systems, radar systems, weapon systems
Research Roles: PhD preferred for research positions
Additional Criteria
Age Limit: Varies by position (typically 18-35 years)
Gap Years: Maximum 2 years gap allowed with valid reason
Course Type: Full-time regular courses only
Nationality: Indian citizens
Scientist B Role
Primary Role: Scientist B (Entry Level)
Salary Package: ₹56,100-1,77,500 per month (Level 10, 7th Pay Commission) for freshers
Selection: Through DRDO placement process (3 rounds)
Focus: Technical depth, research orientation, defence technology knowledge
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2024 Placement Papers PDF
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2025 Placement Papers PDF
Download latest DRDO placement papers 2025 PDF with current year technical questions, aptitude questions, solutions, and updated exam patterns.
2026 Preparation Guide
Prepare for DRDO placement 2026 with expected exam pattern, technical questions, aptitude questions, and comprehensive preparation strategy.
What's Included
Complete DRDO placement papers (2024-2026) with technical questions, aptitude questions, detailed solutions, answer keys, exam pattern analysis, and topic-wise organization.
Online Application
Method: Apply through DRDO official website (drdo.gov.in)
Process: Register, fill application form, upload documents, submit application
Employment News
Method: Apply through advertisements in Employment News
Process: Follow instructions in advertisement, submit application as specified
Campus Recruitment
Method: Direct campus recruitment at select institutions
Process: Apply through college placement cell, attend on-campus process
The DRDO placement process focuses on technical depth and research orientation. Understanding the detailed exam pattern is crucial for effective preparation.
Written Examination - 90 minutes
Total Duration: 90 minutes Total Questions: 100-120 questions Format: Pen-paper or online (varies by recruitment) Negative Marking: Yes (0.25 marks deducted for wrong answer) Platform: DRDO examination centers
Section-wise Breakdown:
| Section | Questions | Time | Difficulty | Focus Areas |
|---|---|---|---|---|
| Technical (Discipline-Specific) | 60-70 | 50 min | Medium-Hard | Core engineering subjects, discipline knowledge |
| General Aptitude | 20-25 | 20 min | Medium | Quantitative, logical reasoning, verbal ability |
| General Awareness | 10-15 | 10 min | Easy-Medium | Current affairs, defence news, DRDO achievements |
| English | 10-15 | 10 min | Easy-Medium | Grammar, comprehension, vocabulary |
Section Details:
Technical (Discipline-Specific): Questions based on your engineering discipline. For Aerospace: aerodynamics, propulsion, structures, flight mechanics. For Electronics: circuits, signals, communication, embedded systems. For Mechanical: thermodynamics, mechanics, design, manufacturing. For CS: algorithms, data structures, programming, computer networks. For Electrical: power systems, control systems, machines, electronics.
General Aptitude: Quantitative aptitude (arithmetic, algebra, geometry, trigonometry), logical reasoning (series, analogies, coding-decoding, puzzles), verbal ability (reading comprehension, vocabulary, grammar).
General Awareness: Current affairs, defence news, DRDO achievements and projects, science and technology updates, national and international events.
English: Grammar, reading comprehension, vocabulary, sentence correction, synonyms/antonyms.
Important Notes:
Success Rate: ~15-20% of candidates clear this round
Technical Interview - 60 minutes
Format: Face-to-face or video conference
Evaluation:
Success Rate: ~40-50% of written test candidates advance
HR/Personality Round - 30 minutes
Format: Face-to-face discussion
Success Rate: ~70-80% of technical interview candidates get offers
| Phase | Duration | Key Activities |
|---|---|---|
| Application Submission | 2-4 weeks | Apply online, submit documents, wait for shortlisting |
| Written Examination | 1 day | Attend examination at designated center |
| Result Declaration | 1-2 weeks | Written test results announced, shortlisted for interview |
| Technical Interview | 1 day | Attend technical interview (face-to-face or online) |
| HR Interview | Same day | HR round typically on same day as technical |
| Final Selection | 1 week | Offer letters issued to selected candidates |
Problem: Explain the basic working principle of a radar (Radio Detection and Ranging) system used in defence applications.
Solution: A radar system works on the principle of transmitting electromagnetic waves and receiving their reflections from targets. The system consists of:
Working Process:
Answer: Radar systems transmit electromagnetic waves, receive reflections from targets, and use time delay and Doppler effect to determine target distance, velocity, and characteristics.
Problem: Explain the key differences between ballistic missiles and cruise missiles used in defence systems.
Solution:
Ballistic Missiles:
Cruise Missiles:
Answer: Ballistic missiles follow parabolic trajectories with power only in initial phase, while cruise missiles maintain powered flight at low altitudes with continuous guidance.
Problem: How does stealth technology work to reduce aircraft radar signature?
Solution: Stealth technology reduces the radar cross-section (RCS) of aircraft through multiple techniques:
Answer: Stealth technology uses angular shapes, radar-absorbing materials, internal weapon storage, and composite materials to minimize radar cross-section and make aircraft less detectable.
Problem: Calculate average speed in meters per second.
Solution: Distance = 1200 km = 1,200,000 m Time = 2 hours = 2 × 3600 = 7200 seconds
Average Speed = Distance / Time = 1,200,000 / 7200 = 166.67 m/s
Answer: 166.67 m/s
Problem: Calculate net percentage change after increase and decrease.
Solution: Let initial cost = 100
After 20% increase: 100 × 1.20 = 120 After 15% decrease: 120 × 0.85 = 102
Net change = 102 - 100 = 2 Net percentage = (2/100) × 100 = 2% increase
Answer: 2% increase
Learn from real DRDO placement interview experiences shared by candidates who successfully cleared the placement process. These authentic stories help you understand what to expect and how to prepare effectively.
Key Insights from Interview Experiences:
Complete Interview Experiences
Read detailed DRDO placement interview experiences including:
Defence Technology
Missile Systems: Guidance systems, propulsion, control systems, warhead design
Radar Systems: Detection, tracking, signal processing, phased array radar
Weapon Systems: Integration, testing, deployment, maintenance
Stealth Technology: Radar cross-section reduction, materials, design
Communication Systems: Secure communication, encryption, jamming resistance
Core Engineering
Aerospace: Aerodynamics, propulsion, structures, flight mechanics, avionics
Electronics: Circuits, signals, communication, embedded systems, radar electronics
Mechanical: Thermodynamics, mechanics, design, manufacturing, materials
Computer Science: Algorithms, data structures, programming, networks, cybersecurity
Electrical: Power systems, control systems, machines, electronics, instrumentation
Mathematics & Physics
Mathematics: Advanced calculus, differential equations, linear algebra, numerical methods
Physics: Mechanics, thermodynamics, electromagnetism, optics, quantum physics
Applied Mathematics: Mathematical modeling, optimization, statistics, probability
Prepare for DRDO placement HR interview with common questions and effective strategies. DRDO HR interview focuses on motivation for defence research, alignment with organizational values, and research orientation.
Common HR Interview Topics:
Complete HR Interview Guide
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DRDO operates 52 laboratories and establishments across India, each specializing in different areas of defence research:
Key Laboratories:
Research Areas:
How It Works: Candidates are typically assigned to laboratories based on their engineering discipline and research interests. Each laboratory has specific research projects and requirements.
Advantages:
DRDO conducts various recruitment programs for different levels and specializations:
Recruitment Types:
Selection Process:
Career Progression:
Key Preparation Principles:
Preparation Approaches:
Complete Preparation Guide
Access comprehensive DRDO placement paper preparation guide including:
| Level | Experience | Pay Scale | Total Package | Typical Background |
|---|---|---|---|---|
| Scientist B | Freshers | ₹56,100-1,77,500 (Level 10) | ₹8-12 LPA | B.Tech/M.Tech graduates |
| Scientist C | 2-3 years | ₹67,700-2,08,700 (Level 11) | ₹12-18 LPA | M.Tech/PhD or experience |
| Scientist D | 3-5 years | ₹78,800-2,09,200 (Level 12) | ₹18-25 LPA | PhD or significant experience |
| Scientist E | 5-8 years | ₹1,23,100-2,15,900 (Level 13) | ₹25-35 LPA | Senior research experience |
Hiring Trends 2025
Increased Focus on Research: DRDO is emphasizing research-oriented candidates with PhD or research experience
Emerging Technologies: Growing demand for candidates with expertise in AI/ML, cybersecurity, and advanced materials
Interdisciplinary Approach: Preference for candidates with knowledge across multiple engineering domains
Process Changes
Online Examinations: Gradual shift towards online examination format
Enhanced Technical Focus: Increased weightage on discipline-specific technical knowledge
Project Evaluation: More detailed evaluation of academic and research projects
New Initiatives
Startup Collaboration: DRDO is collaborating with startups for innovation
International Partnerships: Increased international research collaborations
Technology Transfer: Focus on commercialization of DRDO technologies
Company Growth
Expansion: New laboratories and research centers being established
Modernization: Upgradation of research facilities and infrastructure
Recruitment Drive: Increased hiring across multiple disciplines
DRDO placement papers are previous year question papers from DRDO recruitment tests and interview rounds. These papers contain technical questions (discipline-specific), aptitude questions, general awareness questions, and interview questions that help students understand the exam pattern and prepare effectively for DRDO placement process.
Yes, all DRDO placement papers on our website are completely free to access and download. You can practice unlimited DRDO placement questions and previous year papers without any registration or payment.
Yes, you can access DRDO placement papers online with previous year technical questions, aptitude questions, and interview questions. Our website provides DRDO placement papers PDF download, DRDO previous year questions with solutions, DRDO technical questions, and DRDO interview questions. All papers are completely free and require no registration.
We provide DRDO placement papers from recent years including 2024 and 2025. Our collection is regularly updated with the latest questions and exam patterns.
DRDO placement papers cover: Technical questions (discipline-specific based on your engineering branch), aptitude questions (quantitative, logical reasoning, verbal ability), general awareness (current affairs, defence news, DRDO achievements), English (grammar, comprehension, vocabulary), and interview questions (technical and HR).
DRDO placement process includes: 1. Written Examination (90 minutes) - Technical questions based on discipline, general aptitude (quantitative, logical reasoning, verbal ability), general awareness, English, 2. Technical Interview (60 minutes) - Deep dive into engineering subjects, defence technology questions, project discussion, 3. HR/Personality Round (30 minutes) - General discussion, motivation, behavioral questions. Total duration: 2-3 weeks from application to offer.
DRDO written examination pattern: 90 minutes duration, 100-120 questions total, negative marking (0.25 marks per wrong answer). Sections: Technical (60-70 questions, 50 min) - discipline-specific, General Aptitude (20-25 questions, 20 min) - quantitative, logical reasoning, verbal, General Awareness (10-15 questions, 10 min) - current affairs, defence news, English (10-15 questions, 10 min) - grammar, comprehension.
Yes, DRDO written examination has negative marking. Typically, 0.25 marks are deducted for each wrong answer. It’s important to avoid guesswork and answer only when confident.
DRDO interview process consists of 3 rounds: 1. Written Examination (90 minutes), 2. Technical Interview (60 minutes), 3. HR/Personality Round (30 minutes). Total duration: 2-3 weeks from application to offer letter.
DRDO technical interview questions include: Core engineering subjects (discipline-specific fundamentals), defence technology (missile systems, radar systems, weapon systems, applications in your field), project discussion (detailed discussion on academic projects, research work, technologies used, challenges faced), problem-solving (engineering problems, analytical thinking, practical applications), and general awareness (DRDO achievements, current projects, defence news).
DRDO HR interview focuses on: Motivation for joining DRDO and defence research, interest in serving the nation, career goals and alignment with DRDO, knowledge of DRDO achievements and projects, research interests and orientation, teamwork and problem-solving examples, and communication skills.
DRDO eligibility criteria for freshers 2025: Minimum 65% or 6.5+ CGPA in 10th, 12th, and graduation. Degree required: B.E./B.Tech/M.E./M.Tech/M.Sc/PhD in relevant engineering or science disciplines (Aerospace, Electronics, Mechanical, CS, Electrical, Civil, Physics, Chemistry, Materials Science). Final year students and recent graduates are eligible. Age limit: 18-35 years (varies by position). No active backlogs.
DRDO eligibility criteria for freshers 2026 are the same as 2025: Minimum 65% or 6.5+ CGPA across all academic levels, B.E./B.Tech/M.E./M.Tech/M.Sc/PhD in relevant engineering or science disciplines, final year students or recent graduates, age limit 18-35 years (varies by position), and no active backlogs.
The minimum CGPA required for DRDO is 6.5 CGPA (65%) across 10th, 12th, and graduation. However, candidates with higher CGPA (7.5+ or 75%+) have better chances of selection. For research positions, PhD candidates are preferred. The CGPA requirement is consistent across all engineering and science disciplines.
DRDO accepts candidates from multiple engineering and science branches: Engineering branches include Aerospace, Electronics, Mechanical, Computer Science, Electrical, Civil, and Materials Science. Science branches include Physics, Chemistry, and Mathematics. Specializations in defence technology, missile systems, radar systems, and weapon systems are preferred. PhD candidates are preferred for research positions.
Yes, DRDO has age limits that vary by position. Typically, the age limit is 18-35 years for entry-level positions. Age relaxation is provided for reserved categories as per government norms. Check the specific recruitment advertisement for exact age requirements.
DRDO salary for freshers (2025): Scientist B: ₹56,100-1,77,500 per month (Level 10, 7th Pay Commission) for new graduates. Total annual package including HRA, transport allowance, and other benefits: ₹8-12 LPA. Salaries are as per 7th Pay Commission with additional benefits including HRA (24-27% of basic), transport allowance, medical facilities, and pension benefits.
Career growth in DRDO: Scientist B → Scientist C → Scientist D → Scientist E → Scientist F. Opportunities for higher studies and research, inter-laboratory transfers, international collaborations, and professional development through training programs and conferences. Research-oriented work environment with access to advanced facilities.
DRDO benefits include: House Rent Allowance (HRA) - 24-27% of basic pay, Transport Allowance, Comprehensive medical coverage for employee and family, Generous leave policy, Research opportunities with access to advanced facilities, Job security (government job), Defined benefit pension scheme, and Professional development support.
To prepare for DRDO placement: 1. Core Engineering Subjects (35% time) - Thorough understanding of your discipline fundamentals, 2. Defence Technology Basics (25%) - Missile systems, radar systems, weapon systems, DRDO projects, 3. Aptitude & Reasoning (20%) - Quantitative aptitude, logical reasoning, verbal ability, 4. Technical Interview Prep (15%) - Project discussion, research orientation, communication, 5. General Awareness (5%) - Current affairs, defence news, DRDO achievements. Focus on strong fundamentals and research orientation.
Focus on: Core engineering subjects of your discipline (Aerospace, Electronics, Mechanical, CS, Electrical, etc.), Defence technology basics (missile systems, radar systems, weapon systems), Aptitude and reasoning (quantitative, logical reasoning, verbal ability), General awareness (current affairs, defence news, DRDO achievements), and Project preparation (academic projects, research work, technologies used). See the preparation strategy section for detailed topic breakdown.
Defence technology knowledge is highly important for DRDO. While core engineering fundamentals are primary, understanding defence applications, DRDO projects, missile systems, radar systems, and weapon systems demonstrates research orientation and genuine interest. This knowledge is tested in both written examination and interviews.
Coding preparation depends on your discipline. For Computer Science and related branches, basic programming knowledge (C, C++, Java, Python) is expected. For other engineering branches, coding may not be directly tested, but programming knowledge (especially MATLAB for simulations) can be beneficial. Focus primarily on your core engineering discipline.
DRDO offers: Opportunity to work on cutting-edge defence technologies and contribute to national security, Research-oriented work environment with access to advanced facilities, Job security and stability (government job), Opportunities for professional growth and higher studies, Comprehensive benefits including HRA, medical facilities, and pension, Inter-laboratory transfers and international collaborations, and Sense of purpose in serving the nation through research.
DRDO work culture: Research-oriented and innovation-focused, Collaborative environment with emphasis on teamwork, Opportunities for learning and professional development, Work-life balance with government job benefits, Focus on long-term research projects, and Sense of purpose in contributing to national security.
DRDO’s major achievements include: Development of missile systems (Agni, Prithvi, BrahMos, Akash), Radar systems (AEW&C, various surveillance radars), Aircraft and UAV development, Naval systems and technologies, Armored vehicles (Arjun tank), and Various other defence technologies contributing to India’s self-reliance in defence.
DRDO: Focus on defence research, missile systems, radar systems, weapon platforms. Salary: ₹8-12 LPA for freshers. Research-oriented work. Job security (government).
ISRO: Focus on space research, satellites, launch vehicles, space missions. Salary: ₹8-15 LPA for freshers. Space technology and exploration. Job security (government).
BHEL: Focus on power generation, heavy electrical equipment, industrial systems. Salary: ₹7-10 LPA for freshers. Manufacturing and engineering. Job security (government).
Choose DRDO if interested in defence technology and research. Choose ISRO if interested in space technology. Choose BHEL if interested in power and heavy engineering.
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Ready to start your DRDO preparation? Practice with our placement papers and focus on strong fundamentals in your engineering discipline and defence technology knowledge. Research orientation and genuine interest in serving the nation through defence research are key to success.
Pro Tip: DRDO values technical depth and research orientation. Strengthen your core engineering fundamentals, learn about defence technology applications in your field, and prepare to discuss your projects and research interests in detail.
Last updated: November 2025
