Source: BBC News
Carnatic musicians in the southern Indian city of Chennai have often been accused of being elitist and upper caste.
Their music is traditionally set to songs composed by Hindu devotional poets of the 17th Century and beyond, and is a genre associated with southern Indian classical music.
But, more recently, right-wing groups have issued threats to Carnatic musicians who are seeking to widen their horizons by singing about Christ or producing interfaith fusion music.
The current controversy began with a barrage of attacks aimed at Carnatic singer OS Arun.