UNDP Tsunami Links
UN Team for Recovery and Support: http://www.undp.org/tsunami/india.htm
UN Office of the Special Envoy for Tsunami Recovery: http://www.tsunamispecialenvoy.org/
TNTRC: http://www.tntrc.org/

Government Links
Tamil Nadu: http://www.tn.gov.in/tsunami/
Pondicherry: http://www.pondicherry.nic.in/tsunami/tsunaminew.htm
Kerala: http://www.kerala.nic.in/tsunami.htm
Andhra Pradesh: No dedicated sites available currently

Tsunami Resource Centres
NCRC: http://www.ncrc.in/
Auroville: http://www.auroville.org/tsunami/tsunami.htm
KRRC: http://www.krrc.in/

Others Environment related initiatives
Green Coast Project: http://www.wetlands.org/greencoast/en/index.aspx
TRINET: http://www.trinet.in/
Oxfam: http://www.oxfam.org.uk/what_we_do/emergencies/country/asiaquake/india.htm
Action Aid: http://tsunami.actionaid.org.uk/