Overseas Assignments
- Invited Researcher (April 2018) NSU and NTU, Singapore
- Invited Researcher (Sep 2017) University of Surrey and University of Southampton, UK
- Visiting Researcher (Jan 2013) International Centre for Theoretical Physics, Italy
- Visiting Researcher (Dec 2012) RMUTT, Thanyaburi, Thailand
- Invited Researcher (Aug-Sep, 2011) EHPRG Budapest, Hungary
- Visiting Researcher (May-June 2006) Michigan Technological University, USA
- Visiting Researcher (Dec 2001 - June 2002) Shizuoka University on SVBL Fellowship of Ministry Science & Technology, Japan
- Visiting Researcher (May 2001) International Centre for Theoretical Physics, Italy
- Post Doctoral Fellow (Jan-Nov 1999) Uppsala University, Sweden
