The following is the detailed result of the 2011 Tamil Nadu Legislative Assembly election.
|- ! style="background-color:#E9E9E9;text-align:left;vertical-align:top;" |Alliance/Party !style="width:4px" | ! style="background-color:#E9E9E9;text-align:right;" |Seats won ! style="background-color:#E9E9E9;text-align:right;" |Change ! style="background-color:#E9E9E9;text-align:right;" |Popular vote ! style="background-color:#E9E9E9;text-align:right;" |Vote % ! style="background-color:#E9E9E9;text-align:right;" |Adj. %<sup>â¡</sup> |- ! style="background-color:#009900; color:white"| ! style="background-color: " | | 203 | +130 | 19,085,762 | colspan=2 style="text-align:center;vertical-align:middle;"| 51.9% |- |AIADMK ! style="background-color: " | | 150 | +93 | 14,150,289 | 38.4% | 53.9% |- |DMDK ! style="background-color: #008080" | | 29 | +28 | 2,903,828 | 7.9% | 44.8% |- |CPI(M) ! style="background-color: #000080" | | 10 | +1 | 888,364 | 2.4% | 50.3% |- |CPI ! style="background-color: #0000FF" | | 9 | +3 | 727,394 | 2.0% | 48.6% |- |MNMK ! style="background-color: #FF00FF" | | 2 | +2 | 181,180 | 0.5% | 42.4% |- |PT ! style="background-color: Black" | | 2 | +2 | 146,454 | 0.4% | 54.3% |- |AIFB ! style="background-color: #800000" | | 1 | +1 | 88,253 | 0.2% | 51.2% |- ! style="background-color:#FF0000; color:white"|DMK+ alliance ! style="background-color: Red" | | 31 | -126 | 14,530,215 | colspan=2 style="text-align:center;vertical-align:middle;"| 39.5% |- |DMK ! style="background-color: Red" | | 23 | -77 | 8,249,991 | 22.4% | 42.1% |- |INC ! style="background-color: #00BBFF" | | 5 | -32 | 3,426,432 | 9.3% | 35.6% |- |PMK ! style="background-color: #800080" | | 3 | -15 | 1,927,783 | 5.2% | 39.6% |- |VCK ! style="background-color: " | | 0 | -2 | 555,965 | 1.5% | 34.0% |- |KMK ! style="background-color: " | | 0 | â | 370,044 | 1.0% | 32.5% |- ! style="background-color:Gray; color:white"|Others ! style="background-color: " | | 0 | -4 | 3,137,137 | colspan=2 style="text-align:center;vertical-align:middle;"|8.5% |- |BJP ! style="background-color: #FF9933" | | 0 | â | 819,577 | 2.2% | 2.6% |- |MDMK<sup>â </sup> ! style="background-color: " | | â | -3 | â | â | â |- |IND and others ! style="background-color: " | | 0 | -1 | 2,120,476 | 5.8% | N/A |- | style="text-align:center;" |Total ! style="background-color: " | | 234 | â | 36,845,373 | 100% | â |- | style="text-align:left;" colspan="4" |Valid votes | align="right" | 36,845,373 | align="right" |99.89 | colspan="4" rowspan="5" style="background-color:#E9E9E9" | |- | style="text-align:left;" colspan="4" |Invalid votes | align="right" |40,853 | align="right" |0.11 |- | style="text-align:left;" colspan="4" |Votes cast / turnout | align="right" | 36,886,226 | align="right" | 78.29 |- | style="text-align:left;" colspan="4" |Abstentions | align="right" | 10,229,620 | align="right" |21.71 |- | style="text-align:left;" colspan="4" |Registered voters | align="right" |47,115,846 |colspan="1" style="background-color:#E9E9E9"| |-
â : MDMK left the AIADMK alliance due to failed seat sharing talks and boycotted this election.<br /> â¡: Vote % reflects the percentage of votes the party received compared to the entire electorate that voted in this election. Adjusted (Adj.) Vote %, reflects the average % of votes the party received per constituency that they contested.<br /> Sources: Election Commission of India and Hindu Newspaper