All the communist principle and ideology / socialism are categorized as the "Left Wing" and the capitalism ideology is categorized as the “Right Wing”.

But, Nepali congress, founded by BP Koirala, presents them as the "Socialism"

Even though Nepali Congress is rumored to have abandoned the "Socialism"  in favor of the mixed economy and market economy in certain sectors long ago, its still the member of the Socialist International . And nepal so far has followed the  policy of mixed economy no matter which party leads the government, which means there are clearly no right and left wings in nepali politcs or we can conclude that the parties in nepali politics do not adhere to thier manifestos.