Nagercoil was a Lok Sabha constituency in Tamil Nadu, India.
The death of A. Nesamony in 1968 led to the by-election in Nagercoil constituency.
Realising the popularity of Kamaraj in this constituency and the potential danger posed by Kamaraj's election after the Indian National Congress party's debacle in 1967 election, C. Rajagopalachari wrote in Swarajya, the magazine of the Swatantra Party, about the need to defeat him and appealed to C. N. Annadurai to support M. Mathias, the Swatantra Party candidate.
Despite the efforts, Kamaraj won decisively with a 1,28,201-vote margin on 8 January 1969.
[1] Nagercoil Lok Sabha constituency was composed of the following assembly segments:[2]