MILAN/ROME, Nov 28 (Reuters) -

Italy's new government will probably need to seek fresh options for ailing former phone monopoly Telecom Italia , as a planned bid for its landline grid by state lender CDP appears increasingly unlikely.

Championed by the previous government of Mario Draghi, the multi-billion-euro bid is part of a broader project to combine TIM's network assets with those of smaller rival Open Fiber to create a unified broadband champion under CDP's control.

Due by this Wednesday, Nov. 30, an offer would also be central to TIM CEO Pietro Labriola's plan to break up the struggling phone group to cut its 25 billion euro ($26 billion) debt.

But Italian Prime Minister Giorgia Meloni favours putting CDP's bid on hold, a government source told Reuters on Monday.

Three separate sources had previously said CDP was unlikely to meet Wednesday's deadline, with a fourth source saying CDP had not scheduled a board meeting yet to approve an offer.

Meloni's office and the Treasury did not immediately respond to requests for comment.

Marking a break with the past, Meloni on Friday entrusted the government's broadband strategy to cabinet undersecretary Alessio Butti, who has openly criticised CDP's plans for TIM.

Butti has called instead on Treasury-owned CDP to take over cash-bleeding TIM in full to then sell its service operations, including its Brazil-listed unit.

Economy Minister Giancarlo Giorgetti last week said Butti's plans required extensive discussions within the government, which had "several options" to secure control of TIM's network.

Analysts say coming up with a new plan to combine TIM and Open Fiber would require at least a year, leaving TIM's fate in doubt at a time when rising rates increase the drain on the group's cash flow from interest payments.

"The timing to find a path starts to narrow considering that TIM's available liquidity covers debt maturities until mid-2024 and debt refinancing looks tougher than in the past." Intesa Sanpaolo wrote in a research note.

($1 = 0.9549 euros) (Reporting by Elvira Pollina and Giuseppe Fonte; writing by Valentina Za; Editing by Keith Weir)