DRDO
DRDO interview process: application, written exam, technical interviews and document verification for scientist and technical careers.
- 1958 founded
- Approx. 30,000 (5,000 scientists) employees in India
- New Delhi headquarters
About DRDO
The Defence Research and Development Organisation (DRDO) is India's premier military research and development agency, operating under the Department of Defence Research and Development, Ministry of Defence. It develops technology across aeronautics, armaments, electronics, combat engineering, life sciences, materials, missiles and naval systems.
Formed in 1958 and headquartered at DRDO Bhawan on Rajaji Marg, New Delhi, DRDO runs a network of 52 laboratories across India. It employs roughly 5,000 scientists supported by about 25,000 technical and support personnel, making it one of the country's largest government research employers, with recruitment for scientists handled by the Recruitment and Assessment Centre (RAC).
DRDO hires scientists, engineers and technical staff through structured national-level exams and campus channels such as GATE and DRDO's own entrance tests, alongside apprentices and support staff. It looks for strong domain expertise, research aptitude, and a commitment to long-term work on sensitive national-security projects.
DRDO hiring process
1. Notification and application
DRDO releases recruitment notifications for Scientist 'B' and other posts through the RAC website, specifying eligibility such as GATE score, degree discipline and age limits.
2. Screening based on eligibility or GATE score
For many technical posts, candidates are shortlisted directly using valid GATE scores in the relevant discipline, avoiding a separate written exam for those candidates.
3. Written examination (where applicable)
For posts without GATE-based entry, or for certain technical and administrative roles, a written exam tests core engineering or science concepts along with general aptitude.
4. Personal interview
Shortlisted candidates appear before a panel of senior scientists who assess technical depth, research or project experience, and understanding of the specific lab's focus area.
5. Document verification and medical examination
Selected candidates undergo verification of educational certificates, category and age proofs, followed by a medical fitness examination as required for government scientific posts.
6. Offer and joining
Final selection results are published, and candidates receive an offer with posting details, typically joining one of DRDO's 52 laboratories based on their discipline.
DRDO interview rounds
DRDO's recruitment for scientist and technical posts follows a formal, exam-driven process typical of a large government research organisation, with strong emphasis on academic merit and technical depth over soft skills.
Round 1: GATE score or written exam screening
Most technical posts shortlist candidates using a valid GATE score in the relevant engineering or science discipline, while some posts use a dedicated written exam covering core subject knowledge.
- Core subject knowledge in the relevant engineering discipline
- Basic quantitative aptitude
- General awareness of defence and technology topics
Round 2: Technical interview
A panel of senior scientists evaluates depth of technical knowledge, final-year or postgraduate project work, and familiarity with the specific domain, such as aeronautics, electronics or materials science.
- Explaining your final-year project in technical depth
- Core concepts from your engineering discipline
- Awareness of DRDO's ongoing programmes in your field
Round 3: Research aptitude and domain discussion
For research-oriented posts, the panel probes analytical thinking, familiarity with current research trends, and willingness to work on long-term, classified or sensitive projects.
- How you would approach an open-ended research problem
- Understanding of the lab's mission and focus area
Round 4: Document verification and medical exam
Selected candidates must clear document verification for educational and category certificates, along with a medical fitness examination as mandated for government scientific service.
- Verification of degree, GATE score and identity documents
- Standard medical fitness check
DRDO salaries
| Designation | Average salary |
|---|---|
Manager Experience: 8 - 12 years yrs |
₹ 28.6 Lakhs /year Typical range â‚ą20.8 L – â‚ą36.4 L/yr |
Senior Engineer Experience: 5 - 8 years yrs |
₹ 18.2 Lakhs /year Typical range â‚ą13 L – â‚ą23.4 L/yr |
Design / Production Engineer Experience: 2 - 5 years yrs |
₹ 11.1 Lakhs /year Typical range â‚ą7.8 L – â‚ą14.3 L/yr |
Graduate Engineer Trainee Experience: 0 - 1 years yrs |
₹ 6.2 Lakhs /year Typical range â‚ą4.6 L – â‚ą7.8 L/yr |
Figures are estimates based on typical market ranges for this role and sector, not company-published pay. Actual offers vary by location, skills and negotiation.
DRDO interview questions
Question banks most relevant to roles at DRDO, with model answers.
DRDO interview FAQs
Q1How many rounds are there in the DRDO interview process?
Most candidates go through three to four stages: GATE score or written exam screening, a technical interview, and document verification with a medical examination. Some posts add a research aptitude discussion for laboratory-specific roles.
Q2How long does the DRDO hiring process take?
The process typically takes two to four months from notification to final offer, since it involves centralised screening, interview scheduling across laboratories, and thorough document and medical verification for government recruitment.
Q3Why do you want to work at DRDO?
Mention DRDO's role in building indigenous defence technology, the opportunity to work on nationally significant research, and how your specific engineering or science background matches one of its 52 laboratories, rather than a generic answer about government jobs.
Q4Explain your final-year or postgraduate project and its technical challenges.
Describe the problem you addressed, the methods or technologies used, key technical challenges you solved, and the outcome. DRDO interviewers value candidates who can explain their own contribution clearly rather than reciting a report summary.
Q5How would you approach a research problem with no clear existing solution?
Talk about reviewing existing literature, breaking the problem into testable smaller questions, running structured experiments, and iterating based on results. DRDO values candidates who can reason systematically through ambiguity rather than expecting a ready-made answer.
Q6What is the entry-level pay scale and eligibility for DRDO scientist posts?
Scientist 'B' posts typically follow standard central government pay scales for scientific posts, with allowances varying by location and laboratory. Eligibility generally requires a relevant engineering or science degree with a valid GATE score or qualifying written exam performance.
Quick facts about DRDO
- How do I apply for a job at DRDO?
- Open roles are listed on the company's own careers page: https://rac.gov.in/.
- How many people work at DRDO?
- DRDO employs approximately Approx. 30,000 (5,000 scientists). Headcount figures move over time and are indicative.
- Is DRDO a public or private company?
- Ownership: Government of India (Ministry of Defence).
- Who is the CEO of DRDO?
- As recorded on this profile, Dr. Samir V. Kamat (Chairman) leads DRDO. Leadership can change - check the company's own site for the current position holder.
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