RAGA - Neither scale nor mode, raga is melody based on a scale of 5, 6, or 7 tones. A Raga has special features such as melodic ornamentations (gamakas) and microtones (srutis). Ragas exist for different times of the day, occasions, and seasons.

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raga has ascending pitches arohana
raga has exposition alapana
raga has speed tempo
raga has component alap
raga has descending pitches avarohana
raga has passage taan
raga teaches Indian melody
raga has section anga
raga has parent scale Thaat
raga is melody of South Indian Music
raga is melody of North Indian Music