* Protests to topple PM Yingluck have run since November
* Farmers also protesting; state has not paid for rice
* Slump in confidence, lack of investment hurt economy
* Big withdrawals from bank that helped lender running rice scheme
* Feb. 2 election disrupted, leading to political paralysis (Adds depositors taking cash from bank that helped farm bank)
By Amy Sawitta Lefevre
BANGKOK, Feb 17 (Reuters) - Protesters seeking to oust Prime Minister Yingluck Shinawatra surrounded Thai government headquarters on Monday in response to police efforts to clear them from the streets, as farmers besieged her temporary office to demand payment for rice.
Thailand has been in crisis since November, when Bangkok's middle class and the royalist establishment started a protest aimed at eradicating the influence of Yingluck's brother Thaksin, a populist former premier ousted by the army in 2006 who is seen as the power behind her government.
Data published on Monday showed the economy grew just 0.6 percent in the fourth quarter from the third and, with the country likely to be without a fully functioning government for months, the state planning board slashed its forecast for 2014.
About 10,000 anti-government demonstrators surrounded Government House in Bangkok, taking back control of a road the police had cleared them from on Friday in the first real sign of a pushback by the authorities after months of protests.
These protesters view Yingluck as a proxy for Thaksin, who has lived in exile since 2008 rather than face a jail term for abuse of power handed down in absentia that year.
"We will use quick-dry cement to close the gates of Government House so that the cabinet cannot go in to work," said Nittitorn Lamrue of the Network of Students and People for Thailand's Reform, aligned with the main protest movement.
It was a symbolic gesture, Yingluck having been forced to work elsewhere since January.
The separate protests by rice farmers could turn out to be more damaging for Yingluck.
Rural voters swept her to power in 2011, when her Puea Thai Party pledged to pay rice farmers way above market prices for their harvest. But the programme has run into funding problems and some farmers have not been paid for months.
"END OF OUR TETHER"
Television showed farmers climbing over barbed wire fences and barriers at a Defence Ministry compound where Yingluck has set up temporary offices. They pushed back riot police, who retreated from confrontation, but did not enter the building.
"The prime minister is well off but we are not. How are we going to feed our children? I want her to think about us," said one protesting farmer. "Farmers are tough people, they wouldn't normally speak out but they are at the end of their tether."
Farmers' representatives later met ministers, but when Finance Minister Kittirat Na Ranong came out to speak to the crowd he was pelted with plastic bottles.
The government hopes to sell about 1 million tonnes of rice through tenders this month to replenish its rice fund and is also seeking bank loans to help it pay the farmers.
The Government Savings Bank said on Sunday it had lent 5 billion baht ($153 million) to the Bank for Agriculture and Agricultural Cooperatives (BAAC), which runs the rice scheme.
It did not say what the money would be used for, but some depositors, apparently hearing on social media that it would be used for the rice payments and would therefore help the government, took their money from the bank on Monday.
"Today the bank's clients took out around 30 billion baht. Most clients who withdrew were in Bangkok and the south. Around 10 billion baht was deposited. This doesn't impact the stability of the bank," Worawit Chalimpamontri, president of the savings bank, told a televised news conference.
He said there would be no more interbank lending to the BAAC because the loan was "misused". He did not elaborate.
The 30 billion baht withdrawn represents about 1.6 percent of total deposits, according to Reuters calculations.
Yingluck called a snap election in December and has since led a caretaker administration with only limited powers.
The election took place on Feb. 2 but it was disrupted in parts of Bangkok and the south, the powerbase of the opposition, and it may be many months before there is a quorum in parliament to elect a new prime minister.
The Election Commission has set April 27 as the date to re-run voting that was disrupted but the government said on Monday it wanted the much earlier date of March 2.
"According to the law, the House of Representatives must convene 30 days after a general election," Pongthep Thepkanjana, a deputy prime minister, said after a meeting between the commission and government.
That date seems improbable, especially as the commission and government can't agree on procedures for fresh voting and the Constitutional Court may be asked to rule.
The anti-government protesters, who are aligned with the main opposition Democrat Party, want electoral rules changed to limit Thaksin's influence before an election is held, although their precise demands remain vague.
They accuse Thaksin of nepotism and corruption and say he used taxpayers' money for generous subsidies and easy loans that have bought him the loyalty of millions of poorer voters in the north and northeast.
Consumer confidence sank in January to its lowest level in more than two years and, with big infrastructure projects on hold because of the political vacuum, the planning agency cut its forecast for economic growth in 2014 to between 3.0 and 4.0 percent from 4.0-5.0 percent seen in November.
"Confidence is low and private sector demand in the domestic economy remains weak given the political deadlock," said Gundy Cahyadi, an economist with DBS Bank in Singapore. ($1 = 32.5900 baht) (Additional reporting by Panarat Thepgumpanat, Athit Perawongmetha and Orathai Sriring; Writing by Alan Raybould; Editing by Alex Richardson and Robert Birsel)