Tamil Nadu Bans Export of Construction Materials to Neighbouring States for Three Months Amid Rising Domestic Demand

Tamil Nadu has imposed a three-month restriction on the transportation of rough stones and key construction aggregates to neighbouring states, a move aimed at safeguarding the state’s rapidly growing infrastructure and housing sector. The temporary ban covers exports of rough stones, M-sand, metal jelly and other construction materials to Karnataka, Kerala and Andhra Pradesh, while exempting the Union Territories of Puducherry and Karaikal.

The decision comes as Tamil Nadu experiences a surge in demand for construction materials driven by large-scale public infrastructure projects, private real estate developments and expanding industrial investments. According to the state government, the existing production from operational quarries is no longer sufficient to meet domestic consumption, making it necessary to prioritise local requirements.

Officials noted that continued movement of construction aggregates to neighbouring states had widened the gap between supply and demand within Tamil Nadu. This imbalance has contributed to rising prices of essential construction materials, affecting both government-funded infrastructure projects and private sector developments across the state.

To enforce the order, district collectors and police authorities in border districts have been instructed to closely monitor the transportation of minerals and construction materials. Authorities have also been directed to coordinate with relevant departments to prevent illegal movement of aggregates. Violations of the order will attract action under the Tamil Nadu Prevention of Illegal Mining, Transportation and Storage of Minerals and Mineral Dealers Rules, 2011, along with other applicable laws.

The restriction has already drawn attention from Kerala, where Chief Minister Satheesan has requested the Tamil Nadu government to provide relaxations for National Highway projects. Kerala relies heavily on stone aggregates sourced from the districts of Tirunelveli, Tenkasi and Kanniyakumari for several ongoing highway developments.

In his communication, the Kerala Chief Minister stated that limited availability of quality stone within the state has disrupted the supply chain for critical infrastructure works. He urged Tamil Nadu to evolve a mechanism that would allow uninterrupted transportation of construction materials exclusively for nationally significant infrastructure projects, including highways that improve connectivity to the Vizhinjam International Seaport and the International Container Transshipment Terminal at Vallarpadam.

Industry observers believe the temporary restriction may increase construction material prices in neighbouring states while ensuring better availability within Tamil Nadu. The coming weeks are expected to determine whether both states can arrive at a practical solution that balances Tamil Nadu’s domestic construction needs with the uninterrupted execution of key national infrastructure projects across southern India.