Starting my professional journey with the Defence Research and Development Organisation (DRDO) was nothing short of extraordinary. As part of the mandatory internship program, I spent 7 weeks immersed in a world of high security protocols, advanced engineering, and inspiring mentors.
Research Centre Imarat (RCI), Hyderabad – 7 Weeks
I was posted at Research Centre Imarat (RCI), a premier DRDO lab focused on missile systems. My primary project involved contributing to the K-4 submarine-launched ballistic missile (SLBM)—a strategic asset with a range of 3,500 km.
Project Contributions:
- Pressure Vessel Design: Developed a design tailored for underwater launch conditions.
- Stress Analysis: Evaluated stresses in filament-wound Fiber Reinforced Composites (FRCs) using Netting Analysis.
- Layer Optimization: Determined the optimal number of composite layers for various internal pressure scenarios.
- Simulation with CADWIND: Used this tool to simulate winding patterns and verify manufacturability.
Life Inside a High-Security Lab
This internship wasn’t just about technical work—it was a deep dive into the culture and discipline of India’s defense ecosystem.
- Security Protocols: Every day began with depositing my mobile phone at the gate. The facility was a high-security zone, and even entering required clearance and punctuality.
- Commute & Routine: I left home by 6:00 AM to reach the center by 7:30 AM, ensuring I could catch the internal shuttle and be at my desk by 8:00 AM. The workday ended at 3:00 PM, but the learning never stopped.
- Inspiring Leadership: The project was led by a director—an IIT Madras alumnus—whose dedication was legendary. Though I only interacted with him a couple of times, his reputation for working 15-hour days and solving complex problems left a lasting impression.
- Mentorship: I was guided by a researcher with a PhD from IIT Madras, who helped me navigate both the technical and cultural aspects of working in such a specialized environment.
Tools, Trials, and Takeaways
One of the highlights was working with CADWIND, a simulation tool used to model filament winding patterns. It allowed me to experiment with different winding angles and analyze the resulting structural strength—an invaluable experience in composite design.
While I didn’t get to visit the testing center (a rare privilege for interns), the exposure I gained to real-world defense R&D was more than I could have hoped for in a 7-week stint.
A Brief Note on the K-4 Missile
The K-4 is part of India’s strategic deterrence program. Designed for submarine launch, it provides second-strike capability and is a crucial component of India’s nuclear triad. With a range of 3,500 km, it can carry both conventional and nuclear warheads and is engineered for stealth and precision.
Final Thoughts
This internship was more than just a line on my resume—it was a transformative experience. It taught me not only about composite materials and missile systems but also about discipline, responsibility, and the quiet dedication of those who work behind the scenes to keep a nation safe.
