The freshwater garfish, Xenentodon cancila (Hamilton, 1822), is a needlefish species found in freshwater and brackish areas in South and Southeast Asia. This fish is a regular aquarium favourite. While these fish are linked to the marine needlefish known as gar or garpike in Europe, they are far more distantly connected to other fishes known as gars. For the first time, Trichodina cancilae Asmat, 2001 was discovered parasitizing the gills of a freshwater fish known as Kokila in Assam, India (X. cancila Hamilton, 1822). T. cancilae morphology and morphometrics are discussed here, along with a comparison of the same species found in West Bengal and Bangladesh. This Trichodina species lies within the morphometric range and shares the original population's overall look of the sticky disc.