The phrase "Hindu mode" refers to traditional Indian music scales and melodies. There are several synonyms that can be used to describe this type of music, including raga, ragam, raag, and raaga. The word raga is derived from the Sanskrit term "rag," which means "to color" or "to delight." Ragas are characterized by a set of specific notes or swaras, which are arranged in a particular sequence and played in a specific manner. These musical modes are often used in Indian classical music, as well as in devotional and folk music. The rich history and cultural significance of ragas make them an important aspect of Indian musical heritage.