Post-poll survey

Since exit polls are banned by ECI, Headlines Today-ORG Poll, conducted a post-poll survey, where they polled voters after they voted in their houses. Post polls conducted by Headlines Today-ORG Poll, found this election to be a toss-up, with DMK gaining a lot of ground in the last few weeks before the election. The exit poll particularly noted a late swing towards the incumbent in the rural communities of Tamil Nadu, which allowed the DMK and its alliance to increase its overall vote share percentage from 45% in the pre-poll survey to 50% post-poll. A couple of weeks after the Headlines today post poll, a few post polls showed the exact opposite result, with CNN-IBN and Asianet post poll giving AIADMK+, the majority of the same margin.

Agency	Date reported	Results
Headlines Today–ORG Poll	28 April 2011	DMK+: 115-130 (50% of the vote) AIADMK+: 105-120 (48% of the vote)
CNN-IBN-The Week post-poll survey	10 May 2011	AIADMK+: 120-132 (46% of the vote) DMK+: 102-114 (44% of the vote)
Asianet-C Fore Poll	10 May 2011	AIADMK+: 132 DMK+: 117
Star News	10 May 2011	DMK+: 124 AIADMK+: 110
CVB News-C	10 May 2011	AIADMK+: 176 DMK+: 54-62
Nakkeeran-The Weekly post-poll survey	11 May 2011	DMK+: 137 AIDMK+: 89 Close fight: 8