Gramalaya is advocating different low-cost toilet models which are affordable and acceptable by the local communities depending upon the local situation and willingness of the people. The past 20 years of experience by Gramalaya in the field of sanitation in different regions like rural, urban, tribal and coastal regions gave many successfully field tested models. Gramalaya has constructed leach-pit toilets and pit latrines using locally available materials. But, in some of the operational areas of Gramalaya, like in the tsunami affected areas of coastal region, Gramalaya introduced eco-san toilets. The eco-san toilets are welcomed by the fishermen communities in Nagapattinam District of Tamil Nadu. The successfully field tested models were tried in the waterlogging regions of Cauvery delta in Tiruchirappalli District. There was a rousing welcome from the communities like Varadharajapuram in Thottiyam Block. Though, the eco-san toilets are little extra cost for construction, the long term benefits of using eco-san toilets are more. As a result of the eco-san initiatives by Gramalaya, more and more demands coming from nearby communities both in the coastal regions and delta regions.