Which one of the following nations adopted its first democratic Constitution in September 2015 ?

Nepal adopted its first full-fledged democratic constitution on September 20, 2015. This historic event marked the culmination of a long transition from a 240-year-old monarchy to a federal democratic republic. Although Nepal had several previous constitutions (1948, 1951, 1959, 1962, and 1990), those were 'granted' by the King rather than drafted by democratically elected representatives [1]. Following the abolition of the monarchy in 2008, the 2015 charter was promulgated by President Ram Baran Yadav through a Constituent Assembly [3]. The new constitution restructured the nation into seven provinces and established a secular, federal republican state [3]. In contrast, Bhutan adopted its democratic constitution earlier, on July 18, 2008 [2], while Myanmar's current constitution dates to 2008 [4].

Sources

1. [1] https://www.reuters.com/article/world/nepal-adopts-constitution-born-of-bloodshed-compromise-idUSKCN0RK0LT/
2. [3] https://ag.gov.np/files/Constitution-of-Nepal_2072_Eng_www.moljpa.gov_.npDate-72_11_16.pdf
3. [2] Indian Constitution at Work, Political Science Class XI (NCERT 2025 ed.) > Chapter 1: CONSTITUTION: WHY AND HOW? > Debate over Constitution making in Nepal: > p. 12
4. [4] https://en.wikipedia.org/wiki/List_of_national_constitutions