DAVID Cameron is facing calls to "come clean" about the full scale of his meetings with wealthy Tory donors after fresh allegations emerged about the former party treasurer Peter Cruddas.

Mr Cruddas, who was forced to resign last week, was reported to have claimed to have direct access to the Prime Minister on at least 13 occasions – even bankrolling a dinner at Chequers.

Mr Cruddas stepped down from his position after he was secretly filmed by undercover reporters boasting he could provide access to Mr Cameron and other ministers and influence over policy for donors giving £250,000 to the party.

The Conservatives released details of party donors attending dinners and lunches held at the Prime Minister's official residences at No 10 and Chequers.

However, it has been reported that Mr Cruddas described having direct access to Mr Cameron on at least 13 occasions, including a dinner in London's Belgrave Square on the Prime Minister's birthday.

Mr Cruddas was also said to have claimed he served a "ruby murray" – rhyming slang for curry – to Mr Cameron's wife, Samantha, when she was his dinner companion at a charity event at Chequers, which he sponsored.

While the event, on October 15 last year, was mentioned on the list released by the Conservative Party, no reference was made to Mr Cruddas's personal involvement.

Shadow Cabinet Office Minister Jon Trickett said Mr Cameron now needed to "come clean" about the full scale of his meetings with wealthy Conservative Party donors.

"He needs to establish an independent inquiry immediately so people can have confidence that this matter will be resolved," he said.

"This drip, drip of revelations cannot be allowed to continue."

In a statement, the Conservative Party said: "Over last weekend there was speculation about dinners in the Prime Minister's flat in Downing Street.

"In response to this, the Conservative Party published details of occasions when significant donors had lunch or dinner in official residences used by the Prime Minister, ie Downing Street and Chequers.

"The Conservative Party never claimed that it was publishing details of every occasion the Prime Minister had met with a donor and explicitly did not publish details of the Chequers charity opera event in aid of Mencap and other smaller charities."