Aquatic plants like Hydrilla, Potamogeton, Ranunculus, and Mimulus can help clean up heavy metals from the River Gomti. The water in the river had varying levels of metals like iron, copper, cadmium, and arsenic. These plants absorbed different amounts of metals, with roots storing more than shoots. The study shows that these plants can naturally filter out heavy metals from the river water, making them useful for cleaning up polluted aquatic environments.