HAL Servo Valves: HAL has taken a new step to make more of its defence parts in India. On 27 June 2026, HAL and Research Centre Imarat, RCI, in Hyderabad signed a Licence Agreement for Transfer of Technology, or ToT, for servo valves. HAL shared the news on its official X account. The agreement is meant to help HAL absorb the know-how and set up Indian production for these parts.
Hindustan Aeronautics Limited & Research Centre Imarat (RCI), Hyderabad signed a Licence Agreement for Transfer of Technology (TOT) for manufacturing of Servo Valves at HAL on June 27, 2026. This paves the way for technology absorption & establishing manufacturing facilities for… pic.twitter.com/dARJvE7y9c
— HAL (@HALHQBLR) June 30, 2026
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Why servo valves matter
Servo valves are small parts but they do a very important job inside fighter aircraft. They are special electro-hydraulic devices that control the flight control actuators. These actuators help move different parts of the aircraft, so the pilot can control the plane safely and smoothly. Without servo valves, the aircraft cannot fly properly or respond correctly.
In the Light Combat Aircraft (LCA) Tejas including the TEJAS MK-1A, these valves control parts like the airbrakes and leading-edge slats. These aircraft parts help the jet slow down, stay balanced, and move better during flight. The valves also work under very high pressure and have backup systems to keep working if one part fails.
What this means for India
This agreement is important because it helps India make more defence items on its own. Local production can also make repairs and upgrades easier in the long run. It may lower costs and reduce delays in aircraft work too. DRDO has a long history of moving finished technologies to industry through ToT and LATOT deals, so this move fits that larger pattern.
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The work is also linked to bigger plans for India’s future aircraft projects. The experience gained from making these servo valves can help in later programs too, including newer fighter platforms. In that sense, the deal is not just about one part. It is also about building stronger Indian skill in aerospace manufacturing and making the supply chain more solid.
HAL said the new manufacturing effort will build on its existing industrial base, including earlier collaboration points in Lucknow and Bangalore.
