2nd Jharkhand Assembly was constituted after the 2005 Jharkhand Legislative Assembly election. The 2005 election was the first Jharkhand state assembly election conducted in Jharkhand.
| # | Party | Seats Won | Alliance |
|---|---|---|---|
| 1 | Bharatiya Janata Party | 30 | NDA |
| 2 | Jharkhand Mukti Morcha | 17 | UPA |
| 3 | Indian National Congress | 9 | UPA |
| 4 | Rashtriya Janata Dal | 7 | NONE |
| 5 | Janata Dal (United) | 6 | NDA |
| 6 | Independents | 3 | NONE |
| 7 | All India Forward Bloc | 2 | NONE |
| 7 | United Goans Democratic Party | 2 | NONE |
| 7 | All Jharkhand Students Union | 2 | NONE |
| 8 | Nationalist Congress Party | 1 | NONE |
| 8 | Communist Party of India (Marxist–Leninist) Liberation | 1 | NONE |
| 8 | Jharkhand Party | 1 | NONE |
| Total | 81 |