Among freshwater fishes, the Indian Carp (Labeo rohita, “ROHU”) is one of the most chosen species for Indian diets, but reports of toxicity are rare. This report is of a middle-aged healthy female who developed pain in the abdomen, vomiting, and diarrhea within hours of ingestion of a cooked portion of Indian carp’s intestines and gallbladder. There was an inadvertent delay in diagnosis over 1 week due to the rarity of incidence and non-availability of a definite diagnostic indicator coupled with the lack of awareness and high index of suspicion. However, the patient could finally be diagnosed and treated appropriately after roving around many hospitals and then had life-threatening complications such as acute renal failure and hepatopathy, requiring repeated hemodialysis and supportive treatment before being fit for discharge. In this report, a detailed discussion of the clinical course and toxicological aspects are enumerated with a cautious note to spread awareness to facilitate prompt diagnosis.