Tulip Siddiq has been named by investigators in Bangladesh in a second corruption investigation over a plot of land her family received “illegally” from her despot aunt’s government.

Bangladesh’s anti-corruption commission (ACC) believes the Ms Siddiq, Sir Keir Starmer’s anti-corruption minister, used “her influence” while serving as an MP to obtain the land for her mother, Sheikh Rehana, and two additional plots for her siblings.

The claim is separate from a £4 billion embezzlement investigation by the anti-corruption commission into a nuclear deal struck by Sheikh Hasina, the ousted prime minister, in which Ms Siddiq has also been named but which sources close to the minister have dismissed as “spurious”.

Ms Siddiq is the niece of Shiekh Hasina, the longest serving prime minister of Bangladesh.

Ms Hasina is now in India, having been ousted last year after 15 years in power. During her tenure, opponents were attacked, arrested and secretly imprisoned as the regime carried out extrajudicial killings.

Ms Siddiq is under increasing pressure over ties to her aunt and the use of properties in London, which have been linked to allies of Ms Hasina.