Tamil Nadu has now become a cynosure for alliance politics. Congress, PMK, BJP et al. have joined hands with the primary parties DMK and AIADMK one time or other to win and lose elections.
This particular election has been based on two major critiera
1) Succession in DMK - Karunanidhi is old and clinging on to leave the CM seat to his son/daughter/grand son
2) Comeback by AIADMK - the recent trend shows a mammoth vote gain for AIADMK
With these two major parties deciding the election. It would be interesting to know where the junior partners will go