Tuesday, March 12, 2013 MRIA : Getting ready to greet the skies ! POSTED ON Tuesday, March 12, 2013| | Edit Post Sri Lanka’s second wondrous sky gate - Mattala Rajapaksa International Airport (MRIA) scheduled to be opened on 18th of March 2013 and as the national carrier of Sri Lanka , SriLankan Airlines will be playing a major role in MRIA .