London, July 10 - A high-flying Indian-origin stockbroker who leapt to his death in London had been disciplined over a 'silly prank' that was misread by his clients, the Daily Mail reported Friday.

Anjool Malde, tipped to become the next biggest Indian-origin entrepreneur in Britain, jumped off the roof of a plush London restaurant Sunday, just days before his 25th birthday, shocking the City.

Distraught friends said Malde's action came after he was told to 'leave his desk' by his employer Deutsche Bank July 3 following an investigation into his use of his work computer.

The Daily Mail said Friday the Oxford University graduate, pretending to be one of his clients, had left a silly prank message on a financial website, saying: 'I am hot, I am hot.'

The paper said investigators think this was probably a reference to his client, a hedge fund management firm called Brevan Howard, being on a successful investment run.

However, Brevan Howard made a formal complaint to the company that runs the discussion forum, the Daily Mail said.

The resulting investigation suggested that Malde had impersonated the client from his office computer at Deutsche Bank, prompting his bosses to send him home last week pending a full investigation.

'It was a mildly offensive remark which triggered a tragic chain of events,' a colleague told the paper.

'On the face of it, it was a very trivial incident. But in the City, issues which involve potential loss of money or reputation are taken very seriously,' another source said.