DNA: What is major factor of BJP`s victory in Chhattisgarh?

There was Bhupesh Baghel's government in Chhattisgarh. Be it exit polls or political pundits, everyone had predicted either a close contest between BJP and Congress in Chhattisgarh or a victory for Congress, but when the EVMs opened, Congress got a big shock. Congress lost badly. As soon as the results came, Congress lost power from another state in the Hindi belt.