Congress using religion (chrisitanity, Islam) to woo the minority votes. There are so many minority groups , if you total the total vote, it is more than the majority hindu votes. The voting calculation for congress is like this.
Votes of Christians muslims Dalits etc etc etc etc and the vote of rebel Hindus as a bonus.
BJP depending on the majority Hindus.
both are using the religion as a issue to ask vote. let Gujaratis decide which demon they want to make sit on the throne to suck their blood.