How did a farmer’s son from a remote village in Andhra Pradesh make it to rank three, all-India level, in the Union Public Service Commission’s civil services 2016 examination? There was a time when 30-year-old Gopala Krishna Ronanki’s parents, Ronanki Appa Rao and Rukminamma, an agricultural labourer often out in the fields, did not even have electricity at home or …