A quantitative approach descriptive study was conducted to assess depression and its risk factors among 150 subjects diagnosed with chronic medical conditions like diabetes mellitus, COPD and CAD. The objectives of the study were to identify depression among patients with chronic medical conditions, find out the risk factors for depression among patients with chronic medical conditions and find out the association between depression and its risk factors among patients with chronic medical conditions. The data was collected using socio demographic sheet and Beck's depression inventory (structured interview). The major findings of the study were, among the 150 patients, 42% of them had clinical depression at varying levels and one third of the patients i.e.34% had mild mood disturbance. The major risk factors for causing depression among patients with chronic medical conditions were low education, existence of co-morbid diseases, age, monthly income and use of medications. Significant association was found between depression and its risk factors like marital status, education, occupation, monthly income, family support, history of maternal deprivation and stressful life events. These findings necessitate the need for strategies to improve the patients well being and there by reducing the illness burden.