[citation needed] Due to the cooperation of the ACTC with the United National Party (UNP) a group led by S.J.V.

Chelvanayakam broke away in 1949, forming the Ilankai Tamil Arasu Kachchi (ITAK), commonly known as Federal Party (FP).

[citation needed] The ACTC left the TNA in 2010 and subsequently joined a new political alliance, the Tamil National People's Front.

[citation needed] Leaders of this party: In the 1947 election, the first for the independent Ceylon, the ACTC won 4.37% of the popular vote and 7 out of 95 seats in the Sri Lankan parliament.

Votes and seats won by TNA by electoral district In the 8 April 2010 parliamentary election in which the United People's Freedom Alliance alliance led by President Rajapaksa retained power, the Tamil National People's Front led by Gajendrakumar Ponnambalam won 0.09% of the popular vote and no seats in the Sri Lankan parliament.