1) Please visit this page to register your compliant : http://cmcc.kerala.gov.in/
2) Use the following template (update as required) for the complaint details column
Dear Sir,
I would request your kind attention to the Mullapperiyar Dam Issue. We are much worried about the present condition and we are raising our hands to avoid any disaster to our native. Please act to save our state and lives.
Kind Regards,
<your Name>