Sangeetha Kalanidhi or Sangita Kalanidhi (Sanskrit: saṅgītakalānidhi) (sangeetha = music, kala = art, nidhi = treasure) is the title awarded yearly to an expert Carnatic Musician by the Madras Music Academy. This honour is considered one of the highest awards in Carnatic music.
References
Sangeetha Kalanidhi Wikipedia(Text) CC BY-SA