Every project here is backed by a document we hold: a completion certificate, a client letter, a subcontract or our own project record. The label on each says which.
Featured · Railways · 2025–26
Ballastless track that settled further every monsoon, lifted back to its design profile on a live line, with the ground beneath made stable.
Where we have worked
Every area where we hold a document for the work. The points are areas, not exact sites, and no boundaries are drawn.
USBRL rail link, Katra to Sangaldan and Banihal
Sutlej valley
Nainital and the Alaknanda valley
Head office, and Delhi Metro
Our plant: grouts and resins made here
Shahjahanpur
Patna and Gaya
West Bengal
Four dams
Northeast Frontier Railway tunnels
Western Railway
Gujarat coast
Thane–Kalyan and Bhiwandi
Konkan Railway
Karnataka
All projects
Seepage controlled in a brick-lined railway tunnel built in 1916, on a busy main line, without stopping the trains.
Heavy water ingress in Himalayan tunnels, controlled with our resin, grout design and crews: recorded by Northern Railway at up to 2,500 litres per minute.
Cavities in a Himalayan escape tunnel treated with low-foaming and water-reactive PU resins: one of the two largest chemical grouting jobs we have held.
Two tunnel boring machines held 30 m down in loose, saturated sand. We sealed and consolidated the ground so they could be retrieved.
Seawater pouring into a micro-tunnel pit through a crack, after repeated attempts to seal it had failed. Sealed up to 85 per cent by grouting.
Rock bolting in loose, fissured strata on a 412 MW hydro project in the Sutlej valley.
Soil under a heritage site consolidated by chemical grouting and self-drilling anchors, with the strength gain measured by IIT Patna.
A collapse at the crown left an 8 to 10 m cavity in fractured, water-bearing rock, and the ground above began to settle.
A failing slope over 300 m long and 240 m high, crossed by faults, above the town’s lake outlet. Anchored, grouted and protected.
Further references
Work for which we hold a certificate, a client letter or a work order but have not yet written a case study, and projects where our grouts were applied by the contractor.
Current work
From the work order, letter of acceptance or letter of intent we hold. Case studies follow when the work is complete and certified.
Ask for the documents behind any project on this page, or send us your problem.
