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Instrumentation Limited

  • Location
    Palakkad, Kerala
  • Type
    Nuclear-Research and Development
  • Facility Status

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Instrumentation Limited (IL) is a Government of India enterprise. The first unit of the company was established in Kota, Rajasthan in 1964 to manufacture “electronic and pneumatic instruments…” A second unit was established in 1974 in Palakkad, Kerela to manufacture “control valves, butterfly valves, pressure reducing valves, and allied equipment required by control and instrumentation packages…”


  • The Palakkad unit of Instrumentation Limited manufactures
  • Pressure regulators used in the electro-pneumatic actuation systems of the Akash and Trishul surface-to-air missiles.


[1] Instrumentation Limited, Palakkad, www.ilpgt.com.
[2] Dr. N.C. Birla and B.S. Murthy, eds., “Control and Guidance,” Indian Defence Technology: Missile Systems (1998: DRDO, Ministry of Defence, New Delhi), pp. 137-138.


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