The 2016 NDHS has used the urban rural classification after the country was declared federal republic. You can refer the requester to page 1 last paragraph of the report if required:


1.2 SAMPLE DESIGN

`The sampling frame used for the 2016 NDHS is an updated version of the frame from the 2011 National Population and Housing Census (NPHC), conducted by the Central Bureau of Statistics (CBS). The census frame is a complete list of all census wards created for the 2011 NPHC. Although the NPHC was conducted only 4 years ago, the frame had to be updated due to consecutive changes in urban/rural classifications at the ward level; new municipalities were declared and old municipalities were upgraded
by adding more wards. Originally, the 2011 NPHC included 58 municipalities; this number increased to 191 municipalities during 2014, and 26 more were declared in 2015, yielding a total of 217 municipalities. In addition, in March 2017, structural changes were made in the classifications of urban and rural locations officially known as "Nagarpalika" and "Gaonpalika." The country now has 263 municipalities, and 59% of the total population lives in urban areas. The 2016 NDHS results are based on the updated urban-rural classification.'