From this page, you can easily download Karnataka shapefiles. Download Karnataka shapefiles, including all districts, for free.
Download Shapefiles of Karnataka (All Districts)
These are the 30 districts that make up the state of Karnataka in India. All 30 district shapefiles are available to download and are free to use.
Click on the below download links to download. After downloading, extract the zip files and use it for your projects.
Karnataka Shapefiles for all districts (zip)
N.B. Shapefiles are shared only for educational purposes.