TIRUPATI: The ruling YSR Congress and Opposition Telugu Desam have traded charges of rigging and bogus voting during the elections to the Tirupati Urban Cooperative Bank, which concluded peacefully on Wednesday. Former MLA M Sugunamma, former TUDA chairman Narasimha Yadav, former town bank chairman Puligoru Murali and candidates Bullet Ramana, JB Ramana and P Valamuni were among them. Tirupati urban …