2017 Uttar Pradesh Assembly Elections - How caste can change equations in UP?

Any party knows that to bag UP you need the full support of two dominant castes/communities and a section of the third — to win an election. 

So far, the parties have had the unfailing support of at least one caste and part support from another. Here is a look at the players, how the castes are spread out and the breakup of the castes in the state.