Nepal has seven provinces. While latest data on these provinces are not yet available,
The literacy rate of Nepal in 2011 was 66%. Province 3 has the highest literacy rate (74.8%) while Province 2 has the lowest (49.5%) in the country. Check out the chart below to see literacy rate of other provinces.
p.s: We are looking for the latest data, if you know where it is, please comment below.
Source: Ministry of Education (PDF)
Machine readable data: Google Excel