KAVACH 4.0 approval enters final passenger trials

KAVACH 4.0 approval has entered the last passenger field trial stage for Quadrant Future Tek Limited’s Automatic Train Protection system, as reported by RailAnalysis.

This step brings the indigenous railway safety technology closer to regulatory clearance. Indian Railways has assigned both a dedicated train and a specific route for the tests. If the trials are completed successfully, the system could receive approval from the Research Designs and Standards Organisation (RDSO). It could then move toward wider deployment across the national railway network.

KAVACH 4.0 approval and final passenger field trials

India’s railway signalling and safety landscape is moving into another phase of modernization. Quadrant Future Tek is advancing its Train Collision Avoidance System, KAVACH 4.0. The system is also referred to as the Indian Railways Automatic Train Protection (IR-ATP) system. The start of passenger field trials follows Indian Railways’ allocation of testing resources. It also marks the final phase before the technology can obtain regulatory certification and be introduced on a larger scale.

Quadrant Future Tek has been involved in the design and development of the system for Indian Railways. The objective of IR-ATP is to reduce the risk of train collisions. It is also intended to improve safety through automation and signalling functions. Meanwhile, the company’s management and embedded systems design team have worked toward the final stage of obtaining clearance from RDSO. RDSO serves as the technical standards authority for India’s rail sector. With field trials now under way, the company is nearing the last certification step required before commercial rollout.

Before entering this phase, KAVACH 4.0 went through a broad, multi-layered validation programme. It was designed to confirm compliance with strict safety and reliability requirements for railway operations.

Validation and safety testing

The testing process covered type testing and functional safety assessments. In addition, it included brake performance and operational validation. Also, it covered communication reliability and environmental endurance. Separately, it included Signal Passed at Danger (SPAD) protection and collision avoidance scenarios. Still, the process also covered brake interface validation, secure radio communication testing, and system integration and interoperability checks.

The full validation framework complies with CENELEC SIL-4 safety standards. These are among the highest certification levels used for railway signalling systems globally. At the same time, the testing programme is intended to ensure the system performs reliably in complex operating environments. It is also intended to protect passengers and railway assets.

RDSO certification, ISA review and Indian Railways deployment

For the final field trial stage, Indian Railways has provided a dedicated train and route. This allows the technology to be assessed under real operating conditions with passengers on board. This part of the process is a required step before regulatory approval can be granted.

What the trials are expected to verify?

The trials are expected to confirm real-time system performance. Also, they are expected to confirm communication accuracy between locomotives and trackside equipment. In addition, they are expected to verify automated braking and collision prevention responses. Separately, they are expected to confirm interoperability with existing railway signalling systems.

Certification path and deployment scope

At the same time, the Independent Safety Assessor (ISA) evaluation process is expected to be completed alongside the trials. Once that happens, RDSO is expected to issue final certification for the IR-ATP system. That would clear the way for broader deployment.

For Indian Railways, the KAVACH system is tied to wider efforts to modernize the network. It is intended to prevent train collisions and improve passenger safety. It is also meant to support higher train speeds. In addition, it is meant to assist railway infrastructure modernization and raise operational efficiency. As the rail network continues to expand and upgrade, signalling and automation systems such as KAVACH are expected to remain part of safe and efficient operations.

Quadrant Future Tek order book and technology infrastructure

As disclosed by Quadrant Future Tek Limited, the company had an executable order book of Rs. 8,978.76 million, including GST, as of February 28, 2026. Of that total, Rs. 6,130.35 million is linked to onboard KAVACH equipment. This includes installation in 768 locomotives and EMUs. These orders were received directly from Indian Railways. They are scheduled for delivery during FY 2026–27.

The remaining Rs. 2,848.41 million relates to trackside KAVACH deployment covering 1,109.2 Route Kilometers (RKM). The contract was awarded by RailTel Corporation of India Limited.

Maintenance and facilities

Beyond supply and installation, the company is also positioned to earn long-term maintenance income. Quadrant will handle maintenance for onboard KAVACH equipment from the fifth year through the fifteenth year. This gives the arrangement an 11-year service period. Revenue from this work will be calculated at 3% of the capital cost of the equipment. In addition, the Integral Coach Factory (ICF) has estimated maintenance revenue of about Rs. 867.81 million, including GST, for similar service periods. These contracts provide longer-term revenue visibility and support the company’s financial outlook.

Manufacturing and design base

Quadrant Future Tek’s railway safety technology activities are backed by its manufacturing and development base. At Basma in Mohali, the company operates a speciality cable manufacturing facility. It produces electron-beam irradiated speciality cables for high-performance and safety-critical uses. The site is supported by in-house research and testing laboratories. Meanwhile, the same Basma site also houses a Surface Mount Technology (SMT) production facility. It is dedicated to manufacturing IR-ATP systems for Indian Railways. In Hyderabad, the company runs its embedded systems design centre. It is responsible for engineering, design, and development. It also serves as the core technology hub for the KAVACH project.

This combination of manufacturing and engineering infrastructure is intended to support both quality control and future production scaling. The successful development and deployment of KAVACH could open additional opportunities. For example, creating a SIL-4-certified railway safety system requires advanced engineering capability and strict compliance with regulatory standards. That creates high barriers to entry. Separately, Quadrant also plans to continue innovation in other railway signalling areas, including Electronic Interlocking Systems.

Quadrant Future Tek’s progress into the final field trial stage for KAVACH 4.0 brings the system closer to certification and potential wider use on the Indian Railways network. With regulatory approval approaching, a substantial order book in place, and dedicated manufacturing and design facilities supporting the programme, the company is positioned to take part in the ongoing modernization of railway signalling and collision prevention systems in India.