While large-scale campaigns are essential to drive behavioural change, it is data that will connect the issue with health impacts and lead to impact on the ground. Currently, India does not have any mechanism for tracking water-borne diseases to shed more light about the progress on the sanitation programme. Sunita Narain, director general, CSE, pointed out, "Our experience and our work in air pollution bears out that change happens when we make a connection to people's health. And the issue needs to be handled differently for rural and urban areas. While in the urban milieu toilets have to be linked with disposal and treatment systems, in rural areas the priorities should be address the issue in the context of poverty, behavioural change by linking it with health, water availability, toilet design and waste disposal."