Bihar remained a part of the Bengal Presidency of British Inda until 1912 when the province of Bihar and Orissa was carved out as a seperate province. 
 Thank you for your help 
 you're so welcome 
 Hindi was introduced in the law courts in Bihar in 1880. 
 That has to do more with history, is there anything you can tell me about its media?
Bihar remained a part of the Bengal Presidency of British Inda until 1912 when the province of Bihar and Orissa was carved out as a seperate province.