This directory is divided into two sections - India and International. The first section contains information on environmental health specialists from India, whose names are listed in alphabetical order of the Indian States and Union territories in which their organisations belong. Similar information on international experts, indexed countrywise, is given in the second section. A consolidated alphabetical index of individuals and organisations is given at the end of the directory to help locate them, and provided information with related to designation, organisational and residential addresses, telephone and fax numbers, electronic mail address and relevant professional achievements have been given for each individual.