Bihar Post Office Recruitment 2021: The Department of Posts and office of the Chief Postmaster General, Bihar Circle, Patna has invited applications for the posts of Postal Assistant/Sorting Associate Postman, Postman, and MTS.Bihar Post Office Recruitment 2021: The Department of Posts and office of the Chief Postmaster General, Bihar Circle, Patna has invited applications for the posts of Postal Assistant/Sorting Associate Postman, Postman, and MTS.