The Karnal bunt of wheat is caused by

The Karnal bunt of wheat is caused by Neovossia indica.
Karnal bunt of wheat, caused by Neovossia indica (Mitra) Mundkur, was first reported in 1931 from Northwestern India in experimental plantings, It is a disease of wheat and triticale. The fungus and the plant disease that it causes are harmless to humans and animals.
It reduces grain quality through the production of masses of powdery spores that discolour the grain and grain products.