|Last Updated:||July 1, 2003|
|Location:||Palakkad, Kerala, India|
|Subordinate To:||Ministry of Heavy Industries & Public Enterprises|
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.
 Instrumentation Limited, Palakkad, www.ilpgt.com.
 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.