The article examines the ecological trade-offs of introducing exotic fish species into India's freshwater ecosystems, noting that while the presence of 626 alien varieties has bolstered aquaculture yields and food security, it simultaneously threatens the survival of India's 936 indigenous species. Driven by the demand for fast-growing breeds like Tilapia and Thaipangus, as well as recreational angling and biological control needs, these introductions have led to significant biodiversity loss through competition, predation, and the spread of pathogens. The text highlights specific instances of ecological displacement, such as the decline of native Catla due to Silver carp and the extinction of Schizothorax sp. in Dal Lake caused by Mirror carp, alongside the environmental degradation caused by invasive flora like the water hyacinth. Ultimately, the authors argue that to sustain economic benefits while protecting native fauna, India must implement a rigorous management framework that includes mandatory quarantine, health certifications, and strict risk assessments for all imported aquatic species.