All India Anna Dravida Munnetra Kazhagam | Dravida Munnetra Kazhagam | Dravida Kingdom | Dravida Nadu | Periyar Dravidar Kazhagam | Marumalarchi | Kongunadu Munnetra Kazhagam | Dravidar Kazhagam | Dravida Peravai |
In this election the Dravida Munnetra Kazhagam (DMK) decided to stay with the United Progressive Alliance (UPA), but the Pattali Makkal Katchi (PMK), Marumalarchi Dravida Munnetra Kazhagam (MDMK (breakaway)), and the left parties decided to ally itself with the All India Anna Dravida Munnetra Kazhagam (AIADMK) and the newly formed Third Front.
Most major Tamil Nadu regional parties such as DMK, All India Anna Dravida Munnetra Kazhagam (AIADMK), Pattali Makkal Katchi (PMK) and Marumalarchi Dravida Munnetra Kazhagam (MDMK) frequently participate as coalition partners of other pan-Indian parties in the Union Government of India at New Delhi.