What went wrong for SP-BSP alliance in Uttar Pradesh these polls?

Since beginning of the Lok Sabha polls the nation is witnessing a question that 'If not Modi, then who?'; The way to PM is always led from Uttar Pradesh as it consists 80 seats. The cold war between SP-BSP that fragmented the dalits and muslims voters in UP came together when the chiefs of both party announces an alliance in UP, and too is considered as a turning point in this election. Results shows nothing but a reoil in Uttar Pradesh.