Number Theory: How bipolar are the MP, Rajasthan and Chhattisgarh polls?

An HT analysis shows that the answer varies depending on which indicator one is looking at. Here are four charts which explain this in detail.

​Three out of the five states going to polls in this election cycle, Rajasthan, Madhya Pradesh and Chhattisgarh, have always seen a BJP versus Congress contest. To be sure, these three are not the only states where the main electoral contest is between these two political parties. How bipolar are the elections in these three states?

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