Idukki is one of the highest tribal populated district in Kerala, where KSSS is operating from the very beginning. KSSS has been giving due importance to the integral growth of the tribal communities. For this purpose KSSS opened high range Development Center (HDC) at Adimaly. HDC at Adimaly Co-ordinated the various developmental programs launched at the tribal colonies, Churakettan , Thattekanam, Machiplavu, Chattupara, Koragatty, Kudakattukudy, Nellipetty, Periyakudy, Kuthukallukudy, Kottamudi, Marayoor. At present KSSS is conducting various tribal development programs in Mamalakandam, Pooyamkuttty and Pazhampillichal. KSSS takes up activities to improve social, economic, and cultural and health standards of the tribal through different development programs.
Though at first KSSS concentrated on seminars, awareness programs, medical camps, health and sanitation projects, and housing development Programs, and promotion of educational facilities in the initial stages, later the concentration was shifted to the development of the infrastructure of the tribal people in this area. Also KSSS provides income generation Programs, and Home science classes to tribal women. KSSS started two tribal schools at Marayoor and Kattamudy respectively. Now Kattamudy tribal school is handed over to the state government while Marayoor tribal school is run by KSSS.
Besides, KSSS promotes SHGs for tribal communities and supports them to take up income generation activities using local resources.