Kalyani Cast Tech Limited has received Stage-I Concept Design Approval from the Research Designs and Standards Organisation (RDSO) for a new railway wagon design capable of carrying ISO, domestic and dwarf containers, marking a significant step in its plans to expand its presence in the railway wagon segment.
The approval was granted through a letter dated October 26, 2026, under the Procedure for New Wagon Design Approval (PWDA) Scheme. The company informed the BSE of the development on October 27, in compliance with Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015.
The approved wagon design diagrams are designated KCTL25-A-01 (A-Car), KCTL25-B-01 (B-Car) and KCTL25-C-01 (C-Car).
Further compliance required for detailed design approval
The Stage-I approval is subject to conditions relating to the ability of the proposed wagons to negotiate challenging track configurations. Kalyani Cast Tech must demonstrate that the rolling stock can navigate simple curves of 10 degrees and two closely spaced turnouts of 1 in 8.5, located in the second and subsequent loops, with the distance between switch rails (SRJ) ranging from zero to five metres.
To progress to Stage-II, or Detail Design Approval, the company is required to submit updated details of the guard container design, incorporating revised locking, bolting and fixing arrangements.
It must also provide dynamics simulation reports demonstrating that A-Car and C-Car, C-Car and B-Car, and C-Car and C-Car combinations can negotiate the specified curves and closely spaced turnouts.
Strategic push into container rail transportation
The approval represents an important preliminary milestone in Kalyani Cast Tech’s efforts to develop specialised railway wagon solutions for container transportation. The proposed design could enable the company to explore opportunities arising from the movement of different container types through India’s rail freight network.
The PWDA process requires wagon designs to undergo successive stages of regulatory scrutiny to establish their suitability for railway operations. While Stage-I approval advances the proposal, the company must complete the prescribed documentation, simulations and subsequent approval requirements before progressing towards commercial deployment.
The development strengthens Kalyani Cast Tech’s position in pursuing opportunities in railway freight equipment and India’s expanding multimodal logistics ecosystem.