"The rise stems from increased investment in information technology, particularly back-office and in fact call centres, " Gareth Price of the Economist Intelligence Unit told the BBC's World Business Report.

BBC: India sees jump in foreign investment

But analyst Jason Karaian of the Economist Intelligence Unit said that the total extra funding needed by banks would be far higher in the long run.

BBC: Eight banks fail EU stress test with 16 in danger zone

But Tom Rafferty of the Economist Intelligence Unit told the BBC the issue was unlikely to be just "a passing glitch", and said that such practices could pose technical and political challenges to Tencent because international users were accustomed to sharing information freely.

BBC: Tencent