The Foreign Office's human rights report mid-2015 said Sri Lanka took a number of steps to address human rights and democracy concerns, including setting up new institutions and undertaking legal reforms.
"Freedom of expression improved, with exiled journalists invited to return to the country and a number of banned websites unblocked.
"The democratic space has opened up with travel bans on foreign nationals visiting the North lifted, and the NGO Secretariat moved from the Ministry of Defence to the Ministry of Policy Planning and Economic Affairs," the report said.
According to the report, "the human rights situation in Sri Lanka improved during the first half of 2015, although some concerns remain."
Rajapaksa led the Sri Lankan forces in inflicting a crushing defeat to the Liberation Tigers of Tamil Eelam (LTTE) in 2009, following a nearly three decade conflict that, by some accounts, killed up to 40,000 Tamil civilians.
The report said the conduct of the Lankan security forces and of LTTE during the final stages of the conflict remained on domestic and international agendas.
The report said the unofficial ban on singing national anthem in Tamil has been lifted and people held on terrorism charges released. The violence against religious minorities have decreased.
It, however, said concerns remain over torture and extra-judicial killings.
The welcomed the handing over civilian lands taken over for military purposes in the north and the appointment of civilian governors to both former war affected regions.
Prime Minister David Cameron in 2013 during his visit to Lanka had criticised the "appalling" and "chilling" crimes allegedly committed by the Sri Lankan government in the war against the LTTE.
