Worked as teaching assistant in Kyoto University (March 2002 – March 2005).

Industrial pollution, land degradation and international conventions. Department of Geography and Environment, Dhaka University (occasional).

Agricultural pollution and its impact on riverine ecosystems. Institute of Water and Flood Management (IWFM), BUET (occasional).

Forest Ecology. Ishikawa Prefectural University, Japan (May – August 2010).

Member of “Resource Person Pool” formed by the People’s Republic of Bangladesh ADB funded projects in Bangladesh.