"Based on the reports submitted by the state Chief Electoral Officer and the respective Returning Officers, as well as complaints received from the contesting candidates, the EC declares the polling held in these polling stations as void, and orders repolling," an EC order said.
Of the 29 polling stations, 12 are in Telangana and the rest in Seemaandhra.
Repolling will be conducted in these polling stations on May 13, according to a release from CEO Bhanwar Lal.
TDP had sought repoll in 38 polling stations citing violence and booth capturing by YSRC, but EC did not concede the demand.