Ratnadvipia karui is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Ariophantidae.

Shell is glossy and polished, partly membranaceous, and oval elongately.

Shell golden yellow to deep golden-brown in color.

[1] It can be found in dry zone and lower wet zonal forests and home gardens.

When disturbed or touches, it produces a clear, brilliant orange-red mucus.