In May 2012 he was elected Illankai Tamil Arasu Kachchi 's ( ITAK ) Secretary for Foreign and Legal Affairs .
Sumanthiran was appointed as the Tamil National Alliance 's ( TNA ) National List MP in the Sri Lankan Parliament following the 2010 parliamentary election .
In May 2012 Sumanthiran was elected Illankai Tamil Arasu Kachchi 's ( ITAK ) Secretary for Foreign and Legal Affairs .
Sumanthiran was appointed as the Tamil National Alliance 's ( TNA ) National List MP in the Sri Lankan Parliament following the 2010 parliamentary election .