A mixed bag of results was witnessed in nine Lok Sabha constituencies in the 2009 and 2014 polls where the three lead parties of their respective fronts - DMK, AIADMK and BJP are contesting now.
In 2009, the ruling DMK won in six while the AIADMK-headed front, three. The former bagged North Chennai, Vellore, Tiruvannamalai, Namakkal, Nilgiris and Perambalur. The AIADMK captured South Chennai and Pollachi and its ally Communist Party of India (CPI-Marxist), Coimbatore.
Five years later, the AIADMK swept all the nine seats. The election results of 2019 were not considered, as it had an electoral understanding with the BJP.
