get scholarship in Economic diplomacy program or the one related to Energy security, food security/ or develop expertise in the field of commodity diplomacy then you'll be more productive domestically, hone the acquired skills then i guess the chances are;

waisay shami bhai FSP bhe kafi acha hai
French seekhain and have your eyes at UN mission as French is the language of diplomacy and second working language at UN (first being English of course).