| 1 | 1984 | Evaluation of Drinking Water Schemes |
| 2 | 1988 | Research study on operation and maintenance of Rural Water Supply Schemes |
| 3 | 1989 | Study of the performance evaluation of Users' Committee and developing guidelines for operation and maintenance for Rural Water Supply Schemes in Nepal |
| 4 | 1990 | Study of an evaluation of Semi-Urban (four locations) Sanitation Programme in Nepal |
| 5 | 1996 | Socio-economic survey for feasibility study of 46 rural and 2 urban water supply projects in 10 districts of Eastern Development Region |