1. Indian Association of Hydrologists - IAH Roorkee LM-620, 1989 http://www.nih.ernet.in/IAH.htm
2. Indian Society of Technical Education ISTE-New Delhi LM-8762, 1990 http://www.isteonline.com
3. German Academic Exchange Service DAAD - New Delhi, 1993 http://newdelhi.daad.de/, http://www.daad.de/en/index.html
4. Institute for Scientific Co-operation IWZ- Tubingen, Germany LM-19317, 1995
5. Indian Society of Remote Sensing ISRS – Dehrudun, LM-1439, 1996 http://www.isrsindia.org/
6. Institute of Engineers (India), Calcutta, LM-115552,1998, http://www.ieindia.org
7. Society of Wetland Scientists (SWS), USA Membership (Gratis-membership for 2004-2007, 4 years ) – http://www.sws.org/
8. Canadian Geophysical Union (CGU) – Membership No. 21015 (for 2004-05, one year), http://www.fes.uwaterloo.ca/u/jsprice/CGU-HS/Wetland%20Committee3.htm
9. International Association of Hydrogeologists, UK, Membership (from April 2005 for 3 years)http://www.iah.org/
10. Indian Society of Agricultural Information Technology, Dharwad, Karnataka, (INSAIT), LM- Communicated, 2005, http://www.icar.org.in/ap2000.htm#link3