The document provides an extensive overview of Nasya Karma, a traditional Ayurvedic practice involving the administration of medicated oils and powders through the nasal passage for therapeutic effects. It categorizes different types of Nasya, detailing their pharmacological actions and indications, while explaining the mechanisms of drug absorption via various pathways. Additionally, it emphasizes the significance of further clinical studies to validate the efficacy of Nasya Karma in treating various health conditions.