Kabul - As many as 12,000 Taliban fighters have been killed, captured or wounded in Afghanistan in the past year, according to a UN report which warns that despite Afghan military successes, the insurgency will remain resilient as long as it enjoys a wide range of illicit income streams.

According to Afghan government sources and “Taliban internal statistics” quoted in a special report to the UN security council, between 10,000 and 12,000 rebels are thought to have been killed, captured or wounded. Deaths and injuries among the Afghan police and army have also soared in the last year. A UN official said the number of Taliban losses was a threefold increase on the figure for the same period last year.

The US-led Nato alliance has long refused to publish information about the number of Taliban fighters it believes have died on the battlefield.

The report, by the committee in charge of the UN’s list of senior members of the Taliban subject to international sanctions, says Afghanistan’s army and police have performed well in the past 12 months, even succeeding in taking back some Taliban-controlled territory.

A Taliban effort to overrun towns in 2013 had not “led to significant gains for the Taliban, who have neither managed to seize population centres nor gain popular support”, the report says.

But with violence in the country soaring to levels “not seen since 2010”, the report gives little hope of a respite in fighting as the country prepares for the end of the Nato combat mission next year.

Meanwhile, Afghanistan’s finance minister on Monday rejected “doomsday” predictions that the impoverished country would plunge back into civil war when the bulk of US-led troops exit.

Many international observers have voiced fears Afghanistan could descend into civil war after the 2014 exit of Western combat forces - similar to the conflict the country experienced in the 1990s.

But Afghan Finance Minister Omar Zakhilwal told a business audience in the Indian capital that “the doomsday analysis in which ethnically-based political factions in Afghanistan will descend into civil war” was unfounded.

These predictions will “be proved wrong”, Zakhilwal told the Federation of Indian Chambers of Commerce and Industry.

Next April’s presidential elections “will be held on time - they are not going to lead to crisis, the Afghan people will accept as president whoever gets a majority of votes”, Zakhilwal said.

“There will be no civil war,” Zakhilwal said as he pitched for foreign investment in the landlocked nation at a conference on “Doing Business With Afghanistan”.

The presidential elections are seen as laying the base for a future Afghanistan as the United States and other Western nations wind down their military commitment but the political process has been fraught with discord.

President Hamid Karzai, accused by opponents of widespread corruption, is constitutionally barred from seeking a third term.

Most of NATO’s troops are due to pull out of Afghanistan by the end of 2014 and a credible election is seen as vital to stability in Afghanistan’s first-ever democratic power transfer.

Meanwhile, overshadowing a recent announcement of 10 presidential candidates is a forthcoming “loya jirga”, or grand assembly of tribal elders, which will decide on a crucial security pact with the United States.

If the agreement is passed, up to 10,000 US troops will stay in Afghanistan to help fight Al-Qaeda remnants and train the army.

There are fears if a deal is not reached, all American troops will pull out and local forces will struggle to contain the Taliban.

But Zakhilwal said Afghan security forces were more than capable of ensuring peace in the country.

“Wherever international forces have withdrawn and Afghan forces taken over, not only they have maintained the security, they have improved upon the security,” he said.

The minister added that satellite television, mobile phones and other forms of communication had “transformed the mindsets” of the nation.

From no mobile phones a dozen years ago, the nation of 30 million now has 18.5 million cellular connections, Zakhilwal said.

“The idea of going backward and depriving people of privileges the rest of the world enjoys is impossible,” he said.

Indian Foreign Minister Salman Khurshid in a speech at the forum promised the “greatest support it is possible to give” during Afghanistan’s election process “and beyond”.

“We have no exit policy,” Khurshid said.

India, which has given $2 billion in reconstruction aid to Afghanistan since the Taliban regime was ousted in 2001, been a key supporter of Kabul’s government.