Murdannia sanjappae is endemic to the Andaman Islands of India and is known only from Rutland Island. The species grows along the forest margins and often the edges of perennial water bodies. The area of occurrence (AOO) is calculated as 4 km², using a 2x2 km grid in GeoCAT software (Bachman et al. 2011) and EOO was taken as equal to AOO. There is one location considering a single plausible threat of tourism affecting the entire region simultaneously. Habitat protection is needed for conservation. There is no specific protection given to it. It is assessed here as Vulnerable D2.

Murdannia sanjappae is endemic to the Andaman and Nicobar Islands. It is only reported from Rutland island of South Andamans.

There is no estimation of the population of this species. Around 40 individuals were seen on the single island (Naik and Rao 2017).

It grows along the forest margins and often edges of perennial waterbodies.

The species exists in a single location. Andaman islands have tourism and related infrastructure development can lead to rapid decline in habitat quality.

There is no use or trade information for this species.

There is no conservation action for this species.