I think it is alright to align with either of the parties and govern the sate. When the voters are cannot decide between Congress and BJP, they vote for third party to show their strength of opposing equally. So, why not half term with Cong and other half with BJP solve their purpose of partially voting these parties? If there is a clear majority to any party, that party rules for the full term. Why should we go to polls everytime there is a hung assembly? Good trend in multi-party system as this balances the Power. Not like the developed nations struggling with Polarization of parties. For example, USA has no go to even think of voting a third party. It is completely polarized.