2011 elections in India
Legislative Assembly elections took place in April and May 2011 to elect legislatures in the Indian states of Assam, Kerala, Tamil Nadu, West Bengal and Puducherry.
Legislative Assembly elections
| State/Union Territory | Date |
| Kerala | 13 April |
| Tamil Nadu | 13 April |
| Assam | 4 and 11 April |
| Puducherry | 13 April |
| West Bengal | 18, 23, 27 April, 3, 7 and 10 May |
| Counting | 13 May |
[Assam]
| Rank | Party | Seats Contested | Seats Won | % Votes | % Votes in Seats Contested |
| 1 | Indian National Congress | 126 | 78 | 39.35 | 39.35 |
| 2 | All India United Democratic Front | 77 | 18 | 12.56 | 20.05 |
| 3 | Bodoland Peoples Front | 29 | 12 | 6.13 | 25.17 |
| 4 | Asom Gana Parishad | 104 | 10 | 16.33 | 19.75 |
| 5 | Bharatiya Janata Party | 120 | 5 | 11.45 | 12.05 |
| 6 | Independents | 2 | 9.26 | ||
| 7 | All India Trinamool Congress | 99 | 1 | 1.98 | 2.49 |
| Total | 126 |
[Kerala]
| Rank | Party | Seats Contested | Seats Won | % Votes | % Votes in Seats Contested |
| 2 | Indian National Congress | 81 | 38 | 26.32 | 45.16 |
| 3 | Indian Union Muslim League | 23 | 20 | 7.9 | 50.81 |
| 5 | Kerala Congress | 15 | 9 | 4.92 | 47.05 |
| 7 | SUCI | 21 | 2 | 1.68 | 11.31 |
| 8 | Kerala Congress | 2 | 1 | 0.71 | 46.99 |
| 8 | IDK | 2 | 1 | 0.69 | 45.77 |
| 8 | APM | 1 | 1 | 0.37 | 51.16 |
| 1 | Communist Party of India | 85 | 45 | 28.1 | 45.73 |
| 4 | Communist Party of India | 27 | 13 | 8.69 | 44.8 |
| 6 | Janata Dal | 5 | 4 | 1.51 | 43.22 |
| 7 | Revolutionary Socialist Party | 4 | 2 | 1.3 | 46.39 |
| 7 | Nationalist Congress Party | 4 | 2 | 1.24 | 43.83 |
| 7 | IND | 2 | 2 | 0.71 | 45.47 |
| Total | 140 |
[Puducherry]
| Rank | Party | Seats Contested | Seats Won | % Votes | % Votes in Seats Contested |
| 1 | All India NR Congress | 17 | 15 | 31.75 | 55.47 |
| 3 | All India Anna Dravida Munnetra Kazhagam | 10 | 5 | 13.75 | 41.02 |
| 2 | Indian National Congress | 16 | 7 | 25.06 | 46.14 |
| 4 | Dravida Munnetra Kazhagam | 10 | 2 | 10.68 | 33.28 |
| 5 | Independent | 1 | 9.49 | ||
| Total | 30 |
[Tamil Nadu]
| Rank | Party | Seats Contested | Seats Won | % Votes | % Votes in Seats Contested |
| 1 | All India Anna Dravida Munnetra Kazhagam | 165 | 150 | 38.42 | 53.96 |
| 2 | Desiya Murpokku Dravida Kazhagam | 41 | 29 | 7.88 | 44.84 |
| 4 | Communist Party of India | 12 | 10 | 2.41 | 50.29 |
| 5 | Communist Party of India | 10 | 9 | 1.98 | 48.64 |
| 8 | MMK | 3 | 2 | 0.52 | 8.09 |
| 8 | PT | 2 | 2 | 0.4 | 54.3 |
| 9 | All India Forward Bloc | 1 | 1 | 0.24 | 51.22 |
| 3 | Dravida Munnetra Kazhagam | 124 | 23 | 22.4 | 42.12 |
| 6 | Indian National Congress | 63 | 5 | 9.3 | 35.68 |
| 7 | Pattali Makkal Katchi | 30 | 3 | 5.23 | 39.64 |
| Total | 234 |
[West Bengal]
| Rank | Party | Seats Contested | Seats Won | % Votes | % Votes in Seats Contested |
| 1 | All India Trinamool Congress | 226 | 184 | 42.64 | 56.4 |
| 2 | Indian National Congress | 66 | 42 | 10.00 | 42.31 |
| 3 | Communist Party of India | 213 | 40 | 33.2 | 45.8 |
| 4 | All India Forward Bloc | 34 | 11 | 5.26 | 47.86 |
| 5 | Revolutionary Socialist Party | 23 | 7 | 3.25 | 39.64 |
| 6 | GJM | 3 | 3 | 0.79 | 79.46 |
| 7 | Communist Party of India | 14 | 2 | 2.02 | 38.55 |
| 7 | Independents | 2 | 3.65 | ||
| 8 | SUCI | 29 | 1 | 0.47 | 4.51 |
| 8 | Samajwadi Party | 5 | 1 | 0.82 | 43.56 |
| 8 | Democratic Secular Party | 2 | 1 | 0.39 | 44.69 |
| Total | 294 |