The Soolamangalam Sisters are best known for singing the Kanda Shasti Kavasam, a hymn on the Hindu god Muruga.
Born in Soolamangalam, a village with musical heritage in Thanjavur district of Tamil Nadu, of Karnam Ramaswami Ayyar and Janaki Ammal, the sisters had their training in music from K. G. Murthi of Soolamangalam, Pathamadai S. Krishnan, and Mayavaram Venugopalayyar.
They had a hectic practice for about three decades and were much sought after for providing background music in films.
Their Kanda Shasti Kavasam album is very popular with the Lord Muruga devotees.
Rajalakshmi died on 1 March 1992, aged only 51, because of cardiac arrest and gastritis which lasted for about 12 years.