About Sushil Koirala
Sushil Prasad Koirala was a Nepalese politician and the Prime Minister of Nepal from 11 February 2014 to 10 October 2015. He was also President of the Nepali Congress from 2010 to 2016, having earlier served in various capacities in the party. He is also known as the "Father of Constitution" due to his major role in promulgation of The Constitution of Nepal.
Biography source:
Wikipedia