There are seven days in length music celebration, is held yearly from January 6 to 12 at the 'Kuthira Malika' royal residence complex at Thiruvananthapuram, Kerala, India. The celebration held at the front yard of the grand Kuthiramalika castle, worked by Swati Thirunal is sorted out by H.H. Sir Rama Varma Maharaja of Travancore Trust.
The celebration highlights interpretations by both Carnatic and Hindustani artists including sytheses of Maharaja Swathi Thirunal Rama Varma. Prominent artists like, Ustad Bismilla Khan Gangu Bai Hangal, Dr.M.Balamurali Krishna, D.K.Pattammal and so on have performed in the celebration. The Sangeetholsavam is held in tribute to Maharaja Swathi Thirunal.