Why is Thai Mangur fish banned in India? Bihar raids bring illegal trade back into focus

Thai Mangur fish is once again in discussion after recent raids in Bihar exposed its illegal trade. The fish has been banned in India for years, yet it continues to appear in local markets across several states. The latest action by Bihar authorities has once again highlighted a problem that refuses to disappear.For many buyers, Thai Mangur is simply an affordable fish in the market. But for authorities and environmental concerns, the issue runs much deeper, involving illegal farming and pressure on native fish species.The recent crackdown has raised a simple question: why is a banned fish still so widely available?Thai Mangur, also known as Thai Magur, is a type of catfish known for its fast growth and low farming cost.It can survive in crowded ponds and low-oxygen water, allowing farmers to produce large quantities quickly. This efficiency made it highly popular in commercial farming.The fish is dark in colour with whisker-like features around its mouth and is usually sold at lower prices in local markets.The fish was banned mainly due to environmental concerns.It is considered an invasive species that can disturb aquatic ecosystems. Because it adapts quickly and survives in varied conditions, there are fears it could spread into natural water bodies if released.It is also believed to compete with native fish for food and space, potentially affecting biodiversity and disturbing ecological balance.Despite the ban, Thai Mangur is still farmed illegally due to its profitability.It grows faster than many native species and requires less investment, giving farmers quicker returns. It also handles transport and storage better than many other fish, which helps illegal supply chains continue operating.For traders, these advantages make it a consistently attractive option despite restrictions.The issue resurfaced after authorities conducted raids on illegal Thai Mangur consignments.In Purnia district, officials seized fish stocks reportedly brought from West Bengal. The confiscated fish were later destroyed as part of enforcement action.The raids led to panic among traders and signalled stricter monitoring, with authorities continuing inspections to track supply networks linked to the illegal trade.Thumb image: X