Full list of party-wise and alliance-wise tally of Tamil Nadu Assembly elections 2021. Scroll down to view how many seats each of the big alliances won in these elections and how individual parties have fared and what is their seat change as compared with the 2016 elections.
| Alliance Party | 2021 Win + Lead |
2021 Leads |
2021 Wins |
+/- 2016 |
2016 Wins |
2011 Wins |
|---|---|---|---|---|---|---|
| DMK+ | 159 | - | 159 | |||
| DMK | 125 | - | 125 | +36 | 89 | 23 |
| INC | 18 | - | 18 | +10 | 8 | 5 |
| DMK MDMK | 4 | - | 4 | +4 | - | - |
| DMK OTH | 4 | - | 4 | +4 | - | - |
| VCK | 4 | - | 4 | +4 | - | - |
| CPIM | 2 | - | 2 | +2 | - | 10 |
| CPI | 2 | - | 2 | +2 | - | 9 |
| IUML | - | - | - | -1 | 1 | - |
| AIADMK+ | 75 | 1 | 74 | |||
| AIADMK | 65 | 1 | 64 | -71 | - | - |
| PMK | 5 | - | 5 | +5 | - | 3 |
| BJP | 4 | - | 4 | +4 | - | - |
| AIADMK OTH | 1 | - | 1 | +1 | - | - |
| AIADMK TMC | - | - | - | - | - | - |
| MNM+ | - | - | - | |||
| MNM | - | - | - | - | - | - |
| MNM SMK | - | - | - | - | - | - |
| IJK | - | - | - | - | - | - |
| AMMK+ | - | - | - | |||
| SDPOI | - | - | - | - | - | - |
| AMMK OTH | - | - | - | - | - | - |
| AIMEIM | - | - | - | - | - | - |
| AMMK | - | - | - | - | - | - |
| DMDK | - | - | - | - | - | 29 |
| OTH | - | - | - | |||
| CPI(ML)RS | - | - | - | - | - | - |
| AJPK | - | - | - | - | - | - |
| TMNP | - | - | - | - | - | - |
| SUCIC | - | - | - | - | - | - |
| UMK | - | - | - | - | - | - |
| TMGMK | - | - | - | - | - | - |
| TMTK | - | - | - | - | - | - |
| UBM | - | - | - | - | - | - |
| AIMGRMMK | - | - | - | - | - | - |
| NIRP | - | - | - | - | - | - |
| MNK | - | - | - | - | - | - |
| Samata Party | - | - | - | - | - | - |
| JJ | - | - | - | - | - | - |
| MLK | - | - | - | - | - | - |
| USOIP | - | - | - | - | - | - |
| NINIK | - | - | - | - | - | - |
| RJD | - | - | - | - | - | - |
| BDPA | - | - | - | - | - | - |
| NCP | - | - | - | - | - | - |
| RPOI(S) | - | - | - | - | - | - |
| VTK | - | - | - | - | - | - |
| TZMC | - | - | - | - | - | - |
| PPOI(S) | - | - | - | - | - | - |
| SIFB | - | - | - | - | - | - |
| HJP | - | - | - | - | - | - |
| AMMNK | - | - | - | - | - | - |
| ETMK | - | - | - | - | - | - |
| AIVP | - | - | - | - | - | - |
| MUK | - | - | - | - | - | - |
| IDMMK | - | - | - | - | - | - |
| MTMK | - | - | - | - | - | - |
| ASCP | - | - | - | - | - | - |
| KDMMK | - | - | - | - | - | - |
| NKMK | - | - | - | - | - | - |
| VVP | - | - | - | - | - | - |
| RSP | - | - | - | - | - | - |
| ABPP | - | - | - | - | - | - |
| NMK | - | - | - | - | - | - |
| AIJMK(DR.I) | - | - | - | - | - | - |
| DMMK | - | - | - | - | - | - |
| TMC | - | - | - | - | - | - |
| TTNP | - | - | - | - | - | - |
| JDS | - | - | - | - | - | - |
| IMK | - | - | - | - | - | - |
| MSKK | - | - | - | - | - | - |
| BMFDP | - | - | - | - | - | - |
| TMMK | - | - | - | - | - | - |
| NDMK | - | - | - | - | - | - |
| ABHM | - | - | - | - | - | - |
| DSMI | - | - | - | - | - | - |
| VTVTK | - | - | - | - | - | - |
| IKK | - | - | - | - | - | - |
| LJP | - | - | - | - | - | - |
| MSK | - | - | - | - | - | - |
| ASMK | - | - | - | - | - | - |
| NGPP | - | - | - | - | - | - |
| CPIMLL | - | - | - | - | - | - |
| MMP | - | - | - | - | - | - |
| AMGRDMK | - | - | - | - | - | - |
| PT | - | - | - | - | - | 2 |
| BSP | - | - | - | - | - | - |
| MIPA | - | - | - | - | - | - |
| NTK | - | - | - | - | - | - |
| APOI | - | - | - | - | - | - |
| ADK | - | - | - | - | - | - |
| MGRMK | - | - | - | - | - | - |
| GPOI | - | - | - | - | - | - |
| TNIK | - | - | - | - | - | - |
| DMKM | - | - | - | - | - | - |
| AIPMK | - | - | - | - | - | - |
| DMSK | - | - | - | - | - | - |
| AIUUK | - | - | - | - | - | - |
| RUC | - | - | - | - | - | - |
| AIYDP | - | - | - | - | - | - |
| MDK | - | - | - | - | - | - |
| Makkal Nala Kazhagam | - | - | - | - | - | - |
| SMNK | - | - | - | - | - | - |
| MMMK | - | - | - | - | - | - |
| AIJMK | - | - | - | - | - | - |
| DMPMK | - | - | - | - | - | - |
| NDPSI | - | - | - | - | - | - |
| SSTP | - | - | - | - | - | - |
| APEP | - | - | - | - | - | - |
| NPP | - | - | - | - | - | - |
| AMAK | - | - | - | - | - | - |
| RPOI | - | - | - | - | - | - |
| AMPK | - | - | - | - | - | - |
| APTADMK | - | - | - | - | - | - |
| SS | - | - | - | - | - | - |
| KDC | - | - | - | - | - | - |
| TSPA | - | - | - | - | - | - |
| SP | - | - | - | - | - | - |
| IND | - | - | - | - | - | - |
