
Razib Khan, a popular American geneticist who used to write for The New York Times, has stated in his official Blog that Bhumihars have higher levels of Steppe ancestry and moderate AASI ancestry compared with the average Indian and the average Bihari.
He remarked, regarding Bhumihars, that "Bhumihar people in Bihar tend to have more steppe than typical and average amounts of AASI."
Link to his Blog - Razib Khan's official Blog