The results of the "BJP vs Congress" battle in the Hindi heartland, including Telangana, Madhya Pradesh, Chhattisgarh, and Rajasthan, will determine the tone for the upcoming Lok Sabha polls. Congress is confident about defending Chhattisgarh and winning Madhya Pradesh, while challenging the ruling BRS in Telangana. The party is competing closely with Congress in Rajasthan and has made a strong impact in Madhya Pradesh and Chhattisgarh.