Scientists have discovered a new cave fish in Meghalaya.
It is similar in anatomy to an endangered masher species.
It is "by far the largest known subterranean fish in the world.
All previous discoveries of cave fish from India have been of small fish, and this is the largest of the cave fish discovered in the country, and probably from anywhere in the world.
Widely consumed in India, mahseer live mostly in "fast-flowing streams and rivers and also large reservoirs.
The new species is similar to the golden mahseer, its unusual underground home in Meghalaya's Jaintia Hills.