NOS Past Presidents Dr N C RaiPast President (1985 – 1987) Dr Ram Prasad Pokharel Past President (1987 – 1990) Late Dr Y M PradhanPast President (1990 – 1992) Dr Madan P UpadhyaPast President (1992 – 1994) Dr O K MallaPast President (1994 – 1997) Dr Shashanka KoiralaPast President (1998 – 2000) Dr K P AdhikariPast President (2000 – 2002) Dr Banshi Krishna MallaPast President (2002 – 2004) Dr Sambhu P LakheyPast President (2004 – 2006) Prof Dr Sanduk RuitPast President (2006 – 2007) Prof Dr Dev Naryan ShahPast President (2007 – 2010) Prof Jeevan K ShresthaPast President (2010 – 2012) Prof Dr Reeta GurungPast President (2012 – 2014) Prof Dr Sanjay K SinghPast President (2014 – 2016) Prof Dr Suman S ThapaPast President (2016 – 2018) Prof Dr Badri P BadhuPast President (2018 – 2020) Prof. Dr Rohit SainjuPast President (2020 – 2022)