Pin Code of Sankrail SO is 711313, HOWRAH, West Bengal February 4, 2021 by Sarkari Help Advertisements 0 (0) Information about the post office and pincode of Sankrail SO, HOWRAH, West Bengal Sankrail SO Pin Code : 711313The Pincode 711313 of Sankrail SO represents Howrah Division post office in HOWRAH revenue district which comes under the West Bengal Circleof South Bengal Region. 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.