The brother of a Spotify entrepreneur is planning a new “David and Goliath” legal battle claiming he is owed thousands after his sibling "maliciously pursued" him in court.

Tanweer Khan, 48, an investment banker, says his name was dragged through the mud when his brother, Shakil, sought a High Court injunction to stop him from sending “harassing” emails detailing his criminal past.

Shakil, an investor in the digital music service, argued that emails sent by his brother should be blocked in a bitter row as Spotify prepared to go public on the stock exchange.

The two brothers had fallen out in 2016, a court was told, when their mother’s house was sold. Tanweer claims his brother, who at the time was in severe financial straits, never handed him his share of the profits.

The row escalated when Shakil, 44, contributed to a podcast last year. Tanweer attacked his brother’s public presentation of his criminal record as “a varnishing of the truth” and the court was told he had been “incensed” when his brother accused their father of beating him up during his childhood in Dagenham.

Tanweer sent some 70 messages to his brother, as well as Daniel Ek, the Spotify chief executive, and other associates between late 2016 and 2017, making various allegations that formed the basis of the original court case earlier this year.