Immediately after the Tsunami struck the coastline of Tamilnadu in December 2004, over 3,300 Sevabharathi volunteers plunged into rescue, relief and rehabilitation activities to provide succor to the affected families.

115 persons were rescued before the debris could claim their lives. More than 2,500 dead bodies – most of them decomposed – were removed and cremated with dignity. 110 doctors worked round the clock to provide medical aid. Five Ambulances were pressed into service. 1,200 female volunteers visited 113 villages that were worst affected and provided trauma counseling to children and adults alike. 116 medical experts along with 6 mobile medical units were roped in from other states to provide medical treatment. 15 relief centres were opened and more than 46,000 people were fed within the first one week of the disaster, 26,860 family kits were distributed. A mineral water plant with a capacity of 20,000 liters/day was installed to provide drinking water to 12 affected villages.

In addition to the temporary shelters it put up for the affected the families, Sevabharathi Tamilnadu has constructed more than 1000 permanent houses for the affected families.