SINGAPORE, Sept 17 (Reuters) - Singapore state investor Temasek Holdings said on Monday it was never keen on acquiring Nasdaq's stake in the London Stock Exchange despite reports to the contrary.

"We had not at any time made any offer, nor participated in any bidding for the 31 percent Nasdaq stake in the London Stock Exchange," Temasek spokesman Mark Lee said.

Last week, a report in a British newspaper, confirmed by sources, said the Singapore government investment company had decided not to make an offer for the stake, despite Nasdaq's willingness to extend its original deadline for bids that expired last Friday.

Deutsche Boerse and the foundation controlling Italian bank Banca Monte dei Paschi di Siena , which had also been cited as possible bidders, also said last week they would not make offers for the LSE stake.

Nasdaq wants to sell its LSE stake to bolster its chances of buying Nordic exchange operator OMX .

The US exchange has bid $3.7 billion in cash and shares to buy OMX, pitting it against a rival $4 billion cash offer from Borse Dubai.