the reason congress will always fall apart in state elections is for anything and everything, the candidates always get the permission from delhi for a state problem instead of directly interacting with the local voters...
the only reason congress will win state election is people most of the times wanta a change of guard after long years of rules from parties like TDP etc...else who will vote for them every time..
the reason congress always wins central elections becauase of sympathy with the gandhi family, in teh sense that every time, they invoke indira and rajiv gandhis assasinations and so on...so, if at all the congress win ay elections, its not due to public good will or addressing public concerns...so y vote for this party???