TDR has told Ask Central it is preparing a knockout 220p a share cash offer for the company, nearly 20% higher than the rival offer from the Restaurant Group and valuing Ask at almost £212m. In a statement this morning, Ask said TDR had sent it a proposal about a possible offer at 220p that could be firmed up within a fortnight. Ask told investors that while it continued to recommend the mixed share-and-cash offer from the Restaurant Group, formerly City Centre Restaurants,which is currently worth 176p a share, TDR's counter-proposal " would be extremely attractive". Earlier this week the Restaurant group announced that 46% of shareholders had accepted its offer, and it was extending the deadline of acceptances to January 26. However, Ask said today that shareholders who have not accepted the current offer from the Restaurant Group plc "should take no further action at this stage" and wait until the TDR proposal was firmed up , "at which point shareholders will be advised by the board of Ask Central as to what course of action to take." TDR, a private equity partnership founded in 2002 between two former Deutsche Bank employees, Manjit Dale and Stephen Robertson, and Tudor Capital, an American venture capital firm, is co-owner with Capricorn Investments of the PizzaExpress chain, which they bought together last year in a deal worth £277.8m.