British relief group Christian Aid is calling on the nation's new coalition government headed by Prime Minister David Cameron to renew its efforts in aiding Sri Lankans who remain displaced nearly a year after the country's civil war ended.

Some 76,000 refugees are still living in temporary camps following a bloody 30-year conflict between the Sri Lankan government and the Liberation Tigers of Tamil Eelam, or Tamil Tigers, which left 80 thousand people dead.

Great Britain has been a humanitarian supporter of Sri Lanka, a former British colony, since 2008.

"The British Government must step up efforts to work with the Sri Lankan government and provide further funding to assist the many returnees who still desperately need help," Brian Martin, Christian Aid's country manager for in Sri Lanka, said in a statement on Wednesday.

According to Christian Aid, who is assisting the refugees on site, many of those displaced have no homes or land to return to and basic medical and sanitation services are a problem.

The group further notes that an additional 73,000 Sri Lankan refugees are living in camps in Tamil Nadu, India, waiting opportunities to return home.

"More funding is desperately needed to help in the villages were our partners are working hard to rebuild lives and livelihoods of these returnees," Martin said. "We need to help with income generation before the heavy monsoon rains make living conditions even more dire."

A member of the Action by Church Together Alliance, Christian Aid works in some of the world's poorest communities in nearly 50 countries. The group's vision is to see an end to poverty.