A raga is defined as a collection of musical notes that pleases the ear; the notes of which are arranged in a particular order and scale with specific melodic movements. But unlike a tune, a raga is not fixed and is more like a framework and can be improvised by musicians. The tone in a raga has a particular order and hierarchy, a particular manner of intonation, relative strength and duration, and specific approach. Every raga has a different meaning. 'Drupad' was invented by Mansing Tomar (15th century AD) and Khayal by Sultan Hussin Sherky (15th century AD) and Amir Khusrau invented many ragas mixing Indian ragas with Persian Muquams and mela system of classification of ragas developed in the South. All the traditional ragas of Hindustani Classical Music are based on, or a variation of ten basic Thaats (frameworks or musical scales) – Bhairav, Bilawal, Todi, Asavari, Kalyan, Khamaj, Poorvi, Marwa, Kafi, Bhairavi. Raga Bageshri – arouses a feeling of darkness, stability, depths, and calmness. This raga is also used in the treatment of diabetes and hypertension.