Karl Dewey
On 24 September 2025, India launched a medium-range ballistic missile (MRBM) designated Agni-Prime (Agni-P) from the Integrated Test Range missile-testing facility on Abdul Kalam Island, Odisha State. Though the choice of a rail-based mobile launcher may seem anachronistic compared to more modern road-mobile systems, rail is well suited to India’s mountainous terrain and the variable quality of the country’s road network. In turn, this increased mobility aids dispersal, ambiguity and, ultimately, survivability at relatively low costs. Given these apparent benefits, rail-based concepts have at times also attracted attention in China, North Korea and Russia over the last decade, each for their own set of convergent reasons.
Already in service, the road-mobile variant of Agni-P is set to replace the decades-old short-ranged Agni-I. In its rail-mobile configuration, Agni-P will also likely replace the medium-ranged Agni-II, which, like the intermediate-ranged Agni-III, is rail-based. The September launch was the first known test of Agni-P in its rail-mobile configuration, and the first time Indian authorities have publicly revealed its rail launcher, which is designed to look like a regular commercial freight wagon. Satellite imagery of the Abdul Kalam Island test site from 20 September shows this approximately 17 metre-long launcher in the same position before the test. With India’s rail network fast approaching full electrification, a short stretch of simulated overhead cable had been fitted to this section of track. The released imagery indicates the launcher had a device fitted to move these cables aside for launch.