 She is the founder chief editor of "Thaliru", a children's magazine published by Kerala State Institute of Children's Literature.A committed conservationist, Sugathakumari served as the secretary of the Society for Conservation of Nature, Thiruvananthapuram.In the late 1970s she led a successful nationwide movement, known as Save Silent Valley, to save some of the oldest natural forests in the country, the Silent Valley in Kerala, from submersion as a result of a planned hydroelectric project.