A document to this effect was signed between World Bank head of country office, Bigyan Pradhan, and Finance Ministry Joint Secretary Madhu Kumar Marasini in Kathmandu.
Pradhan said the assistance will be instrumental to help attain the millennium development goals of Nepal.
Of the assistance provided through the World Bank's International Development Association fund, USD 50 million is in the form of soft loan and USD 22 million is grant, a statement issued by the World Bank Nepal said.
This will also help transform 400 Village Development Committees across the country as Open Defecation Free (ODF).
Marasini said the assistance will help Nepal attain the international commitment to provide drinking water and sanitation by 2017.