Pin Code of Tetrarh BO is 821301, ROHTAS, Bihar November 25, 2019 by Sarkari Help Advertisements 0 (0) Information about the post office and pincode of Tetrarh BO, ROHTAS, Bihar Tetrarh BO Pin Code : 821301The Pincode 821301 of Tetrarh BO represents Rohtas Division post office in ROHTAS revenue district which comes under the Bihar Circleof NA. How useful was this post? Click on a star to rate it! Submit Rating Average rating 0 / 5. Vote count: 0 No votes so far! Be the first to rate this post.