The Reading MP at the centre of allegations that a Bradford MP made lewd remarks while drunk will not be making a formal complaint.

Bradford West member Marsha Singh was thrown into the national spotlight after claims in the Mail on Sunday that he made an indecent proposal to Labour Reading East MP Jane Griffiths in the House of Commons smoking room during a break in the 30-hour debate on the anti-terrorism laws on Friday.

The paper claimed Mr Singh was brandishing £20 notes and that he threatened to take on a Labour whip who was called to calm down the situation. It also alleged that, at one point, he offered to pay for sex.

But Mrs Griffiths appeared to pour cold water on the allegations yesterday when she praised Mr Singh's work as an MP and said that she would not be making any complaints.

Mrs Griffiths said: "I have not withdrawn anything but I have not made any statement or any complaint. I have made no complaint against Marsha Singh and I have no intention of doing so."

When probed over the accuracy of the account in the Sunday newspaper, Mrs Griffiths said: "Broadly speaking, it was that kind of theme going on but I have nothing to say other than that. I am not making a complaint against Marsha Singh, never intended to do so and I think Marsha Singh is an excellent MP."

Mr Singh's legal team is still investigating the allegations.

The Bradford West MP said: "I always said it was blown out of proportion but I wish to make no further comment."

Mr Singh, 50, won his Bradford seat in the Commons in 1997 after making a career in the health service.

Earlier this year Mrs Griffiths was deselected by Reading East Labour Party over her support for top-up fees and the Iraq war.

Last June she caused a spat in the Commons after accusing Labour Reading West MP Martin Salter of distributing an "offensive" and "racially inflammatory" letter to constituents during the local election campaign.

She also claimed Mr Salter had bullied her. Mr Salter claimed the bullying claims were "despicable lies and gutter politics" and said any suggestions the letter was racially inflammatory was "nonsense".

And last March, Mrs Griffiths made a range of serious allegations against fellow Labour MPs in an interview with the Mail on Sunday. The paper said she had claimed the Commons was plagued with illicit sex and binge drinking.