India’s infrastructure development push over the past few years has been marked not only by scale, but also by a growing emphasis on resilience, durability and sustainability. As projects traverse diverse geographies, from flood-prone plains and coastal belts to mountainous and other complex environments, traditional construction approaches alone are becoming increasingly inadequate. In this context, the use of geosynthetics as a critical product for creating robust and long-term infrastructure has been rising. Engineered polymeric and natural materials such as geotextiles, geogrids, geomembranes, geocells and geocomposites are now being more actively
integrated into road, railway, airport, port and water infrastructure to enhance structural stability, improve soil performance, manage water flows and reduce lifecycle costs. Their application across infrastructure projects has accelerated, driven by large-scale expressway construction, expansion of logistics and port capacity, rail corridor upgrades and a renewed focus on urban water systems.
Reinforcing roadway network
As India continues to build high-capacity expressways and upgrade arterial road networks, challenges related to weak subgrades, variable soil conditions and heavy traffic loads have intensified. Geosynthetics are increasingly being adopted to strengthen pavement structures, improve drainage and mitigate long-term deformation, particularly in regions prone to waterlogging and seasonal soil movement. For instance, geotextiles and geogrids have been incorporated into the subgrade and embankment design of large under-construction, greenfield expressway projects. This includes major stretches of the Ganga Expressway in Uttar Pradesh, where expansive or low-bearing soils are encountered. These materials act as separation and reinforcement layers, preventing the intermixing of subgrade soil with granular layers while distributing traffic loads more effectively. Their use has enabled faster construction cycles and reduced reliance on extensive soil replacement, a key consideration for projects spanning hundreds of kilometres. In fact, allowing designs for filtration, separation and drainage applications in highway subgrades, Indian manufacturers such as the Geoquest Group have supplied non-woven geotextiles such as TerraTextile- NW. These products allow water to pass through while retaining fine soil particles, thereby maintaining pavement integrity over long service periods.
Landslide-prone regions have also witnessed a particularly sharp increase in geosynthetics usage. According to the Central Road Research Institute, geosynthetics are increasingly being specified as a requirement for road construction across the Himalayan and Western Ghats corridors to stabilise slopes and protect embankments against rainfall-induced failures. In such applications, high-strength geotextiles and erosion control mats are deployed to reinforce soil, reduce surface erosion and enable vegetation growth, improving both structural
stability and environmental outcomes.
Further, under rural road programmes such as the Pradhan Mantri Gram Sadak Yojana, geosynthetics are also gaining ground. Technical advisories issued under the scheme highlight the use of woven and non-woven geotextiles to address weak subgrades and waterlogged conditions. Products supplied by domestic manufacturers, including TechFab India, have been used to improve pavement performance while reducing material thickness and life cycle costs, making them particularly suited for resource-constrained rural projects.
Improving airports’ subgrade perform ance and drainage resilience
Airport infrastructure presents unique geotechnical challenges due to heavy aircraft loads, stringent performance requirements and exposure to extreme weather conditions. Geosynthetics are increasingly being deployed beneath runways, taxiways and aprons to improve load distribution, drainage and long-term pavement integrity. In challenging terrains such as the north-eastern and Himalayan regions, ongoing maintenance and strengthening works at airports like Pakyong, Sikkim, have continued to rely on geosynthetic reinforcement systems. High-strength geogrids and geotextiles are also used in embankments and slope protection to mitigate landslide risks and erosion caused by intense rainfall, ensuring operational safety and stability.
Regional airports undergoing expansion, such as the Kolhapur and Akola airports in Maharashtra, are adopting modern reinforced pavement systems such as geogrid-based systems in their apron and taxiway areas. These zones are subject to high static and dynamic loads from aircraft parking and towing operations. Geosynthetics enhance subgrade stiffness and reduce rutting, allowing for thinner pavement sections without compromising structural performance.
Drainage improvement has emerged as another key application area. Following runway performance issues observed during heavy monsoon events, airport authorities have increasingly specified geocomposite drainage layers beneath pavement systems. These solutions facilitate rapid lateral water movement, preventing pore pressure build-up in subgrade layers and helping maintain load-bearing
capacity during prolonged rainfall.
Strengthening railway track foundations
India’s rail infrastructure is on the path of major transformation, with new freight corridors, high-speed rail projects and capacity augmentation works placing unprecedented demand on strong track foundations. Geosynthetics are playing a growing role in ensuring track stability, particularly in areas with weak soil, high axle loads and flooding risks. For instance, in high-speed rail corridors, geosynthetics are being incorporated into track bed and embankment systems in select sections where subsoil conditions warrant additional reinforcement. Non-woven geotextiles and geogrids are used beneath ballast and sub-ballast layers to improve load distribution, control settlement and maintain track geometry, critical factors for high-speed operations.
Similarly, dedicated freight corridor sections also rely on geosynthetics to extend ballast life and reduce maintenance. By preventing fine soil migration into ballast layers and enhancing drainage, geotextiles help address ballast fouling, a common issue on heavy-haul routes with high axle loads.
In flood-prone and riverine stretches, particularly in eastern and north-eastern India, rail embankment protection works have increasingly combined geosynthetics with bio
engineering measures. Geotextile wraps and erosion control fabrics are used to stabilise slopes and protect embankments against scour during peak monsoon flows, reducing service disruptions and repair costs.
Managing loads on soft marine soils
Port infrastructure development often encounters highly compressible marine clays and aggressive coastal environments. In recent capacity expansion and modernisation projects, reinforcement requirements have emerged as indispensable tools for soil stabilisation, pavement reinforcement and erosion control. In fact, the rehabilitation of access roads at eastern ports has seen the integration of geotextile-geogrid composite systems to address premature pavement distress caused by heavy truck traffic and weak subgrades, improving operational efficiency across logistics chains. At Vizhinjam port, Kerala, geosynthetics were used to strengthen port access roads carrying heavy container traffic. Geocells in combination with a woven geotextile were installed over weak subgrade comprising locally available dredged sand. The three-dimensional confinement provided by the geocells improved load distribution, reduced settlement under heavy trailers, and enabled faster construction while lowering overall costs compared to conventional granular solutions.
Moreover, the Ministry of Ports, Shipping and Waterways has been advancing research and development guidelines for the use of geosynthetics in ports, coasts and waterways, indicating formal recognition and upcoming structured standards for deploying geotextiles, geogrids and related products in maritime infrastructure (including reinforcement, erosion control and soil improvement), though detailed results are still being prepared as part of final evaluations. At the international standards level, ISO/TR 18228-5:2025 (a technical report published by the International Organization for Standardisation) provides design guidance for geosynthetics, including their role in stabilising granular layers, a principle directly relevant to port backfills, quay pavements and reclamation works where load distribution and settlement control are critical.
Making water infrastructure robust
Water and wastewater infrastructure is emerging as one of the fastest growing
application areas for geosynthetics in India. From riverbank protection and drainage improvement to containment and groundwater recharge, these materials are enabling more efficient and environmentally responsible solutions. In April 2025, bioengineered riverbank stabilisation works along the Vishwamitri river in Vadodara demonstrated how geosynthetics can be integrated with ecological approaches. Coir-based geotextiles were used alongside vetiver plantations to stabilise dredged riverbanks, reduce erosion and support vegetation growth. The geotextiles provide initial structural support while allowing natural systems to establish long-term stability.
Urban drainage and desilting projects have also embraced geosynthetic solutions. In cities such as Prayagraj, geotube technology was deployed in 2025 to dewater and contain dredged sediments from drains feeding into the Ganga. These systems accelerate sediment management while preventing secondary pollution, offering a cleaner alternative to conventional disposal methods. Similarly, rainwater harvesting initiatives in major cities have increasingly integrated geotextiles into modular recharge structures.
In sum
Geosynthetics have become integral to India’s infrastructure ecosystem, with applications now extending well beyond niche ground improvement uses to underpin the performance, durability and resilience of highways, rail corridors, airports, ports and water systems. By stabilising weak soils, improving drainage, optimising material use and enabling faster construction, these engineered solutions deliver tangible gains in cost efficiency
and sustainability.
Reflecting this momentum, discussions have recently highlighted the rising demand for coir geotextiles, recognising their effectiveness in strengthening canal embankments and roads while mitigating erosion and improving soil stability along riverbanks and drainage channels, alongside calls to promote local manufacturing with support from the Coir Board. Coupled with expanding solutions, from high-performance polymeric products to natural fibre-based and bioengineered systems, the sector is evolving rapidly. As India continues to scale up infrastructure investment to drive economic growth and climate resilience, the strategic integration of geosynthetics will remain central to delivering assets that are not only larger in scale but also smarter and stronger.
At a policy level, the push for self-reliance and sustainability is also creating space for both indigenous innovation and standardisation. Greater alignment between ministries, technical bodies and state-level implementing agencies is expected to accelerate the formulation of clearer design guidelines and quality benchmarks. This will also address earlier concerns around inconsistent specifications and awareness gaps. Simultaneously, the integration of geosynthetics into climate-resilient infrastructure planning, particularly for flood management, coastal protection and urban drainage, underscores their strategic value beyond conventional construction efficiency.
