Depressive illness is one of the most common psychiatric disorders. In recent years its prevalence is high throughout the world and is a major challenge to the medical profession. There are many formulations recommended for mental disorders in the classics of Ayurveda. But scientific evaluations are less to establish the effect of these formulations in various types of mental disorders. The present study is to evaluate the effect of Brahmyadi yoga in symptoms of Depressive illness. The study was an open trial done in ten patients, without control group. It was done in OPD, Department of Kayachikitsa, Government Ayurveda College Hospital, Thiruvananthapuram. Patients were selected as per ICD10 diagnostic criteria with proper exclusion. Participants were administered Brahmyadi yoga, 6gm twice daily before food, with honey for a period of three months. Clinical assessment was done using Hamilton Rating Scale for Depression, before and after the intervention. Data obtained were statistically analyzed. There was significant reduction in the total score of HRSD (p 0.05. The study concluded that the study drug Brahmyadi yoga is significantly reducing some major symptoms of depression and not reducing some other symptoms.