Definition
GEO_IA2005 (V101_IA2005) indicates the region of India where the respondent was interviewed. DHS units in the 2005 India survey are equivalent to states, with the capital remaining an autonomous region.
Other sample years have their own sample-specific geography variables. There is also an integrated variable, GEO_IA1992_2015, that provides spatially consistent units over time.
A GIS map for GEO_IA2005 (in shapefile format) can be downloaded from the DHS Program Spatial Data Repository [URL omitted from DDI.] Boundaries page.