The epidemiology of dengue fever in the Indian subcontinent has been very complex. It is no longer restricted to urban centres, with outbreaks now occurring in rural India also. The mosquito vectors, Aedes aegypti and Aedes albopictus prefers to breed in artificial water. They are day biters and are most active just after sunrise and just before sunset. As per the new guidelines dengue is now classified into three categories, dengue, dengue with warning signs and severe dengue whereas the clinical course of the disease is divided in three phases – febrile, critical, and recovery. The diagnostic tests are NS1 antigen, which can be done by ELISA or rapid test, and serological tests by detection of viral antibodies IgG and IgM. Depending on the severity, treatment may be as outpatient, inpatient or emergency treatment. Shock and hemorrhage are the two most dreaded complications which require monitoring and intensive care management.