Making Sanitation A 'Clean' Habit: Lessons from a School Sanitation Project, is a comprehensive study published by Watershed Organisation Trust (WOTR), that outlines the lessons gleaned from the evaluation of a large sanitation project involving 100 schools, largely Zilla Parishad institutions. The project was implemented in 2003 in four districts, Ahmednagar, Beed, Nagpur and Wardha, in the state of Maharashtra , and the evaluation was conducted four years later in 2007