SHIMLA: Himachal Pradesh, where regionalism scores over other issues, usually votes in favour of the party ruling the state. Traditionally, the highland — part of Himachal before statehood in 1971 — has sided with Congress while the lowland (areas that were merged) has been favouring BJP. Corruption is a key issue, with serious charges against CM Virbhadra Singh. The BJP, too, is facing a series of investigations.