Nepal lies in the central part of long east-west extended Himalayan chain. Ranging from 60m in south to 8848m, the highest point of the world “Mt. Everest”, this country shows its peculiar convergence of topographic, climatic, and edaphic factors representing all types of ecosystems from tropical to Alpine. About two-third of its area is occupied by hills and mountains. Moreover due to intricate climatic and landscape variation of mountain ecosystems a large number of habitats and microhabitats within each Himalayan and Trans-himalayan valleys host unique herbs of higher potentialities. These herbs are unique in the sense;

• Strictly available in Himalaya,
• Nurtured by the nature, Organic and are beyond the human interventions,
• Herbs with highly potential principle constituents (chemicals) due to inherent tendencies to grow in harsh environment of the Himalayas.