Pin Code of Sowan BO is 802111, BUXAR, Bihar June 3, 2020November 25, 2019 by Sarkari Help Advertisements 0 (0) Information about the post office and pincode of Sowan BO, BUXAR, Bihar Sowan BO Pin Code : 802111 The Pincode 802111 of Sowan BO represents Bhojpur Division post office in BUXAR 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.