The case study titled “Making nightsoil-based biogas plants viable in Maharashtra’s Pune district” has been written by Dr. S V Mapuskar in India Infrastructure Report, published in 2007 by United Nations Children's Fund (UNICEF). It presents Dehu village of Maharashtra’s Pune district, where some families allow their neighbours to use their toilets for a nominal maintenance charge making attached biogas plants economically viable. The strategy has also eased the village Panchayat’s responsibilities for human nightsoil management and reduced environmental pollution due to open defecation.