Question

What are endemic or indigenous species.

Answer 1

These are species which are found in some particular areas usually isolated by natural barrier
for example :-
Andaman teal

Answer 2

Endemic species are plants and animals that exist only in one geographic region. Species can be endemic to large or small areas of the earth: some are endemic to a particular continent, some to part of a continent, and others to a single island.

Or simply,
The type of Virgin vegetation which are purely Indian are called Endemic or Indigenous vegetation