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The SEI/WASHi project implemented five pilot sites in Bihar, India, to demonstrate sustainable, dry sanitation systems (ecosan) that treat human excreta for use as agricultural fertilizer. The project addressed flood-prone conditions, gender-specific hygiene needs—particularly menstruation management—and established the state's only nutrient-testing laboratory in Patna. Agricultural trials showed that urine-fertilized plots produced yields equal to or better than those using commercial NPK fertilizer. The initiative aimed to influence state policy and contribute to Millennium Development Goals by providing low-cost alternatives to agricultural chemicals and improving public health.

The project implemented urine-harvesting urinals at a school and administrative office in Bind Block, Bihar, and conducted field trials to compare treated urine with NPK chemical fertilizers. Results showed that urine provided similar or better crop yields for vegetables and fruits, while offering a free alternative that could save a family approximately 4,000 rupees annually. By framing urine as a valuable resource rather than waste, the project aimed to overcome social and caste-based barriers to sanitation adoption in rural India.

The pilot project in Mohaddipur, Bihar, introduced enclosed long-term composting (ELTC) technology to provide a community sanitation complex and produce 'humanure' fertilizer. The system was adapted for the Indian context by incorporating anal-cleansing water and replacing peat with coconut fibre. While the facility is widely used by the 21 local households and has attracted government interest for replication in Bihar Sharif, challenges remain regarding long-term funding for maintenance and community ownership.