Design & Engineering
In-house naval architecture, structural analysis, machinery layout and system integration. We design every vessel from scratch for the client's specific operational requirement.

At TNSL, we believe true capability is built across the entire journey from the first line on a design drawing to the final handover. With our integrated capabilities and commitment to quality, we strive to build responsibly, take ownership at every stage, and deliver vessels we can stand behind with confidence.
In-house naval architecture, structural analysis, machinery layout and system integration. We design every vessel from scratch for the client's specific operational requirement.
CNC fabrication, automated welding, modular block construction, outfitting and sea trials, all managed in-house across our three shipyards with full QC and NDT verification at every stage.
On-time delivery and post-delivery support.

New vessel construction across defence, research, commercial and export segments, from naval barges to research vessels, from passenger ferries to ice-class bulk carriers.

Industry 4.0 production infrastructure, in-house R&D, green energy integration and smart-yard digital systems.

Three West Bengal facilities: Titagarh, CSPL and the upcoming 50-acre Falta Greenfield Shipyard, engineered for precision at scale.
At TNSL, we believe innovation goes beyond a statement it is reflected in the way we work. From our processes and systems to the vessels we design, we continuously embrace modern technologies and practices to create solutions that are efficient, reliable, and future-ready.
Six CNC plasma cutting machines. Automatic plate processing with integrated blasting, painting, cutting and 3D bending.
Semi-automated multi-electrode welding bays in panel lines, delivering consistent quality across every joint.
ERP-integrated inventory, cloud-based project tracking and a digital workflow from CAD to fabrication floor.
Climate-controlled FRP and carbon fibre moulding; multi-material bays for steel, aluminium and FRP at Falta.
E-boat battery handling and jetty charging infrastructure. Rooftop solar targeting net-zero operations.
Hydraulically actuated drop keel, composite flap rudder and hydrofoil river ferry design, developed entirely in-house.
OperationalNorth Kolkata · 30,000 sqm building area · 500m waterfront · side & stern launching.
OperationalNorth Kolkata, West Bengal. Integrated fabrication and outfitting facility for mid-size vessel construction.
Under ConstructionSouth Kolkata · 50 acres · 400m waterfront · vessels up to 140m.