London, Aug 28 - The death of a successful Indian-origin banker who leapt in front of a train here on the day he was due to have dinner with his wife has baffled his family, colleagues and a coroner.

Carl Perreira, 36, an acquisitions manager at Allied Irish Bank, leapt in front of a speeding express train in London April 3 after inexplicably going on an alcohol drinking binge.

Born in Mumbai and brought up in Melbourne, he was described by colleagues as an intelligent, hard-working and well-liked professional.

An inquest into his death earlier this month was told Perreira was coping well at work and had been acting normally, the Daily Mail reported.

Perreira was not known as a heavy drinker but consumed five times above the drink-driving limit.

Perreira had arranged to dine out with his wife, nursery nurse Gemma Campbell, shortly before his death at Wimbledon Station in south-west London.

Eyewitnesses saw him put a plastic bag containing two cans of beer on the platform before leaping into the path of the train.

He rang his office April 2 to say he was suffering from a headache and would not be coming in and decided not to work the following day too, but appeared to be relaxed and normal.