Avionics & Defence Electronics

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Spectrum InfoTech Pvt. Ltd. (SIPL), a wholly owned subsidiary of Larsen & Toubro Ltd., is located in Bangalore and operates under L&T Heavy Engineering as its avionics arm. SIPL is involved in the design, development and manufacture of Military Avionics & Defence Electronics for the Indian Defence Aircraft, Helicopter & Missile programmes.


  • Design, Development and Manufacture of avionics subsystems/Line Replaceable Units
  • Design, Development and Manufacture of Defence Electronics
  • Design, Development and Manufacture of Automated Test Equipment & Ground Checkout systems
  • Upgrades to existing systems
  • Obsolescence Management
  • System Integration, Testing and Validation
  • Build to Print of avionics subsystems

Track Record:

L&T's technical team comprises experts with extensive experience and strong domain knowledge. The Company has full-fledged capability to design, develop and produce state-of- the-art mission-critical and flight-critical avionic systems. It has designed and developed a number of systems for the Light Combat Aircraft (LCA) and Helicopter programmes.

These include: 

  • Cockpit Interface Unit 
  • Environment Control and Fuel Monitoring System
  • Electronic Control Unit for Integrated Life Support System
  • Milking Unit for Flight Data Recorder 
  • Data Concentrator Unit 
  • Graphics Processing & Video Mixing Unit 
  • Video Symbology, Overlay Display & Switching Unit
  • Processing Unit for Flight Data Acquisition Unit
  • Cockpit Display Systems


  • Certified by CEMILAC (Centre for Military Airworthiness & Certification) 
  • The facility at Bengaluru is a CEMILAC certified  Design & Development House for Airworthy Units and is AS9100 Rev C certified