The visiting delegation from the Office of the High Commissioner for Human Rights was told of continuing discrimination at the hand of Sri Lankan authorities during a meeting with the TNA on Friday.
In a statement the TNA said they discussed disappearances, accountability and resettlement issues with Hanny Megally, the head of the Asia, Pacific, Middle East and Africa branch of the OHCHR.
The TNA said it also said it raised concerns about colonisation and changes in the demographics of the northeast.
"Amongst the matters discussed were land issues relating to security zones where the displaced people have not been able to resettle, their lands being taken over for military purposes, lands being taken over ostensibly for development purposes and on which, persons of the majority community are being settled, cultural and religious places being denied to the Tamil people," the statement said.