Boosting CBRN Defense: How the Indian Army Enhances Safety with Indigenous ACADA Systems

On February 25, 2025, the Indian Army made a big step to improve its defense with a deal to buy 223 Automatic Chemical Agent Detection and Alarm (ACADA) systems from Larsen & Toubro Ltd. This contract is worth Rs 80.43 crore and supports the Buy Indian initiative, which aims for over 80% of components to be sourced locally.

Developed by the Defence Research and Development Organisation (DRDO) in Gwalior, the ACADA system is a cutting-edge technology for detecting chemical threats. This is a key achievement for India in the Chemical, Biological, Radiological, and Nuclear (CBRN) defense field, helping the country become more self-reliant.

What Makes ACADA Special

The ACADA system can detect chemical warfare agents and toxic industrial chemicals very quickly. It works by continuously checking the air around it, using advanced technology called Ion Mobility Spectrometry (IMS). This method involves two sensitive IMS cells that allow for accurate and simultaneous detection of harmful substances.

By using these systems, the Indian Army will greatly improve its ability to respond to chemical threats during both military operations and everyday situations. This capability is especially important for responding to industrial accidents and chemical spills, enabling faster and more effective action in these emergencies.

Supporting Local Manufacturing

This deal also aligns with the Indian government’s Make in India vision, which encourages local defense production and less reliance on foreign products. The involvement of L&T Ltd in making the ACADA systems highlights the growing role of Indian private companies in defense projects.

The introduction of ACADA systems will enhance India’s CBRN defense readiness, showing a commitment to developing high-tech military solutions domestically. This contract is not just about technology—it positions India as a more self-sufficient force in global defense matters.