WORKSHOP CO-ORDINATOR of the COMPUTER APPLICATIONS FOR COLLEGE GEOGRAPHY TEACHERS IN TAMIL NADU AND THE WORKING GROUP ON RESTRUCTURING THE GEOGRAPHY SYLLABI - held from 4th to 9th July 1994.

WORKSHOP CO-ORDINATIOR of the COMPUTER APPLICATIONS IN GEOGRAPHY FOR COLLEGE TEACHERS IN THE SOUTHERN STATES - (Sponsored by the UGC, New Delhi) held from 5-9th December 1994.

ORGANISING SECRETARY of the National Conference on HEALTH & ENVIRONMENT held from 4-6th February, 1995 in association with the INDIAN SOCIETY OF ENVIRONMENTAL HEALTH,.

ORGANISING SECRETARY of the National Conference on RESOURCES APPRAISAL AND MANAGEMENT FOR SUSTAINABLE DEVELOPMENT, 1-3 February 1997, , sponsored by the DST, NRSA,DOD,DOEn New Delhi.

ORGANISING SECRETARY of the National Conference on DISEASE ECOLOGY, HEALTH AND HEALTH CARE FOR LONGEVITY, 14-15 February 1998, sponsored by the Directorate of Public Health and Preventive Medicine (Government of Tamil Nadu, Chennai) and the Council of Scientific and Industrial Research, New Delhi.

CONVENER of the 20th Institute of Indian Geographers Meet with a focal theme of REMOTE SENSING AND GIS APPLICATIONS IN SPATIAL SCIENCES held from 19th to 21st February 1999, sponsored by the Council of Scientific and Industrial Research, National Informatic Centre (Planning Commission of India), Department of Ocean Development, Department of Space and National Remote Sensing Agency (Government of India Funding Agencies).

WORKSHOP CO-ORDINATOR of the GLOBAL POSITIONING SYSTEM FOR SURVEYING AND MAPPING organized for the college teachers and research scholars in the southern parts of India from 25to 28th February 2002 with the sponsorship of AICTE, TNSCST, CSIR, and DOD.