The Indian Army has finalized a contract on 25 February 2025 for the procurement of 223 Automatic Chemical Agent Detection and Alarm (ACADA) systems with Larsen & Toubro Ltd (L&T) at a cost of ₹80.43 crore. This procurement falls under the Buy Indian (Indigenously Designed, Developed, and Manufactured – IDDM) category, aligning with the Government of India’s Atmanirbhar Bharat (Self-Reliant India) initiative. Over 80% of the components and sub-systems used in the ACADA systems will be sourced domestically, providing a substantial boost to India’s defense indigenization efforts.
The ACADA system has been designed and developed by the Defence Research and Development Establishment (DRDE), a premier laboratory under the Defence Research and Development Organisation (DRDO) based in Gwalior. This marks a significant milestone in India’s efforts to achieve self-reliance in the CBRN (Chemical, Biological, Radiological, and Nuclear) defense domain, a critical and niche area of modern warfare and disaster management.
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What is ACADA system?
The ACADA system is a state-of-the-art technology designed to detect Chemical Warfare Agents (CWAs) and pre-programmed Toxic Industrial Chemicals (TICs) by continuously sampling and analyzing the surrounding air. It operates on the principle of Ion Mobility Spectrometry (IMS), utilizing two highly sensitive IMS cells for real-time detection and simultaneous monitoring of hazardous substances. This dual-cell configuration ensures high accuracy and reliability in identifying toxic agents, even in complex environments. The induction of ACADA systems into the Indian Army’s field units will significantly enhance its defensive CBRN capabilities. These systems will not only bolster operational readiness during warfare but also play a crucial role in peacetime scenarios, particularly in disaster relief operations involving industrial accidents or chemical spills. By providing early warning and accurate detection of toxic agents, the ACADA systems will enable faster and more effective responses, thereby minimizing casualties and damage.
This procurement underscores the Indian Army’s commitment to modernizing its CBRN defense infrastructure while supporting the nation’s broader goal of achieving self-reliance in defense technologies. The collaboration between DRDO and L&T also highlights the successful integration of public-private partnerships in advancing India’s defense capabilities. Induction of ACADA into Indian Army marks a significant step in enhancing self-reliance in critical technology for sensing CW agents.
