Jerdon's Courser is a Data Deficient species of bird found in India. It is a small, ground-dwelling bird that is found in dry, open habitats. It is threatened by habitat loss and degradation.

Nilgiri Tahr is a Data Deficient species of mammal found in India. It is a large, goat-like animal that is found in the Nilgiri Mountains of southern India. It is threatened by habitat loss and degradation.

Olive Ridley Sea Turtle is a Data Deficient species of reptile found in India. It is a large, marine turtle that is found in tropical and subtropical waters. It is threatened by habitat loss, pollution, and overexploitation.

Malabar Tree Toad is a Data Deficient species of amphibian found in India. It is a small, arboreal frog that is found in the Western Ghats of southern India. It is threatened by habitat loss and degradation.

Indian Mahseer is a Data Deficient species of fish found in India. It is a large, freshwater fish that is found in the rivers of northern India. It is threatened by habitat loss, pollution, and overfishing.

Sal is a Data Deficient species of plant found in India. It is a large, deciduous tree that is found in the forests of northern and central India. It is threatened by habitat loss and degradation.

Data Deficient species are often difficult to find, not considered to be important, and not well-studied. This lack of information makes it difficult to assess their risk of extinction.

Data Deficient species are threatened by a variety of factors, including habitat loss and degradation, pollution, overexploitation, and climate change.

To protect Data Deficient species, it is important to conduct surveys to collect more information about them, protect their habitats, reduce pollution, regulate their exploitation, and raise awareness about their importance.

Data Deficient species may be important for ecosystem functioning, have potential economic value, and have cultural or religious significance. It is therefore important to protect them.

The International Union for Conservation of Nature (IUCN) is responsible for assessing the conservation status of species.

The IUCN Red List is a list of species that are threatened with extinction.

The categories of threat on the IUCN Red List are Extinct, Extinct in the Wild, Critically Endangered, Endangered, Vulnerable, Near Threatened, Least Concern, Data Deficient, and Not Evaluated.

Not Evaluated species have more information available than Data Deficient species. Data Deficient species are species for which there is inadequate information to make a direct, or indirect, assessment of its risk of extinction based on its distribution and/or population status. Not Evaluated species are species for which there is no information available to make an assessment of their risk of extinction.

There are around 1000 Data Deficient species in India.