... requested for the interview. The questionnaire used for the interview was on socio-economic status of the respondent, sources and practices about drinking water, types of latrines, cost and financial ... appropriate technology, ii) formation of the local committee, which can act as the connection point of the conversation between the local people, donor agencies, and the local government, and iii) involvement ... To operate and maintain the biogas plant system continuously, it is necessary to establish the operation and maintenance system including the maintenance cost sharing by the local people. At...