Former Appointments

Visiting Scholar (Professor) Center for Natural Resources Development and Protection John A. Reif, Jr. Dept. of Civil and Environmental Engg., New Jersey Institute of Technology, Newark, NJ, USA

Professor Environmental Engineering and Management, Department of Civil Engineering, National Institute of Technology (NIT), Warangal, Warangal, Andhra Pradesh, India (2008-10)

Court Member Court of Central University of Jharkhand, Ranchi, India (Nominee of Ministry of HRD, Govt. of India)

Appointed as Adviser (JS) In-charge of the Central Public Health and Environmental Engineering Organization (CPHEEO), Ministry of Urban Development, Government of India

Brainpool Professor Department of Civil & Environmental Engineering, University of Ulsan, South Korea (2007-08)

Visiting Professor Urban Environmental Management, School of Environment, Resources and Development, Asian Institute of Technology, Thailand 2012 and in 2018

Policy Researcher Institute for Global Environmental Strategies, Japan (2004-05)

NIES Fellow Center for Global Environmental Research, National Institute of Environmental Studies, Tsukuba, Japan

KIEP Fellow Korean Institute of International Economic Policy, Seoul, South Korea