Pin Code of Ranchi GPO is 834001, RANCHI, Jharkhand December 10, 2019November 25, 2019 by Sarkari Help Advertisements 5 (1) Information about the post office and pincode of Ranchi GPO, RANCHI, Jharkhand Ranchi GPO Pin Code : 834001 The Pincode 834001 of Ranchi GPO represents Ranchi Division post office in RANCHI revenue district which comes under the Jharkhand Circleof NA. How useful was this post? Click on a star to rate it! Submit Rating Average rating 5 / 5. Vote count: 1 No votes so far! Be the first to rate this post.