The AIADMK has established commanding lead in 31 lok Sabha constituencies out of the 39 constituencies in Tamil Nadu for which details are available. According to ECI, the DMK is yet to establish lead in any of the constituencies in Tamil Nadu. The BJP and the PMK, constituents of the NDA lead in each constituency. Pon Radhakrishnan of the BJP leads by 2000 votes in Kanyakumari while Dr Anbumani Ramdoss of the PMK leads by 13000 votes at Dharmapuri.
Former union ministers T R Baalu, A Raja and Dayanidhi Maran (all of the DMK) are trailing behind their nearest AIADMK rivals. Karthi Chidambaram, son of union finance minister P Chidambaram is way behind the AIADMK, BJP and DMK candidates at Sivaganga.