[2][3] He is a distant relative of V. Prabhakaran, leader of the militant Liberation Tigers of Tamil Eelam.

He subsequently formed the Tamil National Liberation Alliance (TNLA) with other dissident members of the TNA.

[19] He took his oath as provincial councillor in front of Justice of Peace Mayilerum Perumal at a beach side Hindu temple in Mullivaikkal, a village on the north-east coast of Sri Lanka which was the scene of the final battle of the Sri Lankan Civil War, on 14 October 2013.

[26][27] He has openly called for former President Mahinda Rajapaksa and former Army Commander Sarath Fonseka to be tried for war crimes at the International Criminal Court.

[3] Shivajilingam claims that the Sri Lankan military, the Eelam People's Democratic Party and the LTTE had tried to assassinate him on a number of occasions.