Step 1: Note the theme of the award.
The UN Secretary General's Award here was given for a project titled "Equal Partners, Lasting Peace", which points to a gender-inclusive peacekeeping initiative in South Sudan.
Step 2: Match the rank and gender angle.
Such awards under this theme are usually won by women officers serving in UN peacekeeping missions, which narrows the field to the woman officer among the choices.
Step 3: Eliminate the rest.
The Colonel-rank names do not correspond to this particular citation, leaving the Major-rank woman officer as the answer.
\[ \boxed{\text{Major Swati Shastha Kumar}} \]