Encephalitis is the inflammation of the brain tissue. Due to direct infection or a hematogenous path, it can develop. It may occur through the mucosa of the olfactory or along the nerves of the periphery. Encephalitis can also cause an immunological reaction. A female child of 4 years old was admitted at AVBRH with complaints of fever, convulsion and depressed sensorium. Fever (101^oF), convulsion and depressed sensorium. Patient had undergone various diagnostic evaluation such as Complete Blood Count (CBC), MRI (Brain), CSF Study. Inj. Meropenem 500mg IV x Q8H, Inj. Vancomycin 260mg IV x Q6H, Inj. Acyclovir 260mg IV x Q8H, Syp. Eptoin 5ml Oral x BD, Syp. Gardenal 8ml Oral x BD. The condition of patient was improved after the initiation of treatment. Fever and convulsion were relieved after the administration of tepid sponging, antipyretic and anticonvulsant. Patient was admitted to Paediatric Intensive Care Unit (PICU), AVBRH with complaints of fever, convulsion and depressed sensorium and was diagnosed with Viral Encephalitis. Immediate treatment was started and patient condition was improved.