The repoll will be held at Katihar, West Champaran, Araria, Madhubani, Vaishali, Patna and Rohtas districts on May 20, the state election commissioner J K Dutta told reporters in Patna.
The poll panel reviewed the third phase of panchayat elections and ordered repoll at 13 polling stations amid
reports of booth rigging and other electoral malpractices from there which were found true during investigation, he said.