Dengue has emerged as the world's most widespread and rapidly increasing vector-borne disease. India, is among the 30 most highly endemic countries in the world. Among southeast Asian region, India is identified as a major contributor reporting outbreaks of dengue fever regularly, one such outbreak of dengue fever was reported from Santosh Hospital, Ghaziabad, UP, India. The clinical spectrum is variable most dengue viral infections are self-limiting, but complications may cause mortality and morbidities the clinical and biochemical profile were taken to evaluate the outcome of dengue fever in children, less than 17 years of age admitted to the hospital from September 2021 to September 2022 at the department of pediatrics, Santosh medical college. A total of 150 cases of Fever under evaluation were taken into study, out of which 100 cases had confirmed diagnosis of Dengue Fever according to WHO classification (Dengue fever, Dengue fever with warning sign, and severe Dengue fever). Out of which n=87 (87%) were dengue with warning signs and n=13(13%) were with severe dengue fever. The most prevalent complaint was fever in 100% of cases and hepatomegaly was present in 50% of cases the average age of admission was 10 years, melena was seen in 4% of cases, elevation in SGOT (>200) and SGPT (>200) was seen in 50%, and thrombocytopenia was seen in 27%, 2% patients had encephalopathy, 4% patients had shock and were managed in Pediatric ICU. Post rainy season high index of suspicion should be kept as many unusual features can be there (encephalopathy, Raised Liver enzymes). Early diagnosis and optimum diagnosis can make a significant change towards reducing mortality due to dengue.