The biggest break was of course, the oldest of all, that of the Shiv Sena-BJP. The reasons for this are many, but the two most prominent ones appear to be Uddhav Thackeray's hurry to be CM and the BJP's confidence post the spectacular victory in May. The MNS is still a factor that may cause a problem to this direct content of saffron parties, despite its rout in the Lok Sabha polls. The real concern is the fact that the BJP is heavily banking on Narendra Modi, going as far as to break with the tried and tested formula of projecting a CM candidate to lead the campaign. This is a major shift in policy and actually indicates that the BJP's confidence might be misplaced, because the only change from the last election is the PM. However, it remains a fact that Modi is wildly popular and has an unparalleled connect with voters and this formula could certainly reap dividends, risky as it may be.
The other break hardly makes a mention in the media. The Congress-NCP alliance, always one of political opportunism draped in secularism, seems to have broken for no better reason that the NCP figures the Congress to be more of a liability than an asset. After the rout in May, the Congress has not changed anything except for keeping Rahul Gandhi out of elections (possibly a smart move!). Coupled with the huge corruption scandals and farmer suicides in Vidarbha, it seems the NCP wants to pile the blame on to an already battered Congress and escape much of the blame. This could be a smart move, unless the voter is too smart to miss it. And that is where the whole election lies - whose bluff does the voter catch?