this is a very interesting site.
check out their demos pages and try searching via tamil.
example:
ennama kannu sowkiyama?
aamama kannu, sowkiyathan.
translated:
எணà¯à®£à®®à®¾ கணà¯à®£à¯ சொவà¯à®•ியமா?
ஆமாமா கணà¯à®£à¯, சொவà¯à®•ியதà¯à®©à¯
if you can't view the translator font, you need to install tamil font.