U.S. stock index futures rose on Tuesday as the U.S. dollar hit a 1-year low against the euro ahead of the beginning of a Federal Reserve monetary policy meeting, boosting oil prices.

* The Federal Reserve starts its two-day monetary policy meeting on Tuesday with a decision on interest rates due at around 2:15 p.m. (1815 GMT) on Wednesday. Markets will be looking for any comment indicating that the Fed might wind down on its financial stimulus measures given the improving macroeconomic data. For details see [ID:nN21312982].

* Citigroup shares rose 2.7 percent to $4.55 before the opening bell. The Government of Singapore Investment Corp (GIC) said it has cut its stake in Citi to below 5 percent through open market sales. GIC held more than 9 percent of Citi on Sept 11, when it converted its preference shares to ordinary shares.

* The head of Cadbury PLC , which is facing a possible takeover by U.S. food giant Kraft Foods Inc , said there were some complementary elements in the two companies' portfolios, according to a Wall Street Journal report. But Cadbury's chief executive Todd Stitzer said his company's shareholders still reject the deal at the $16 billion price offered by Kraft.

* S&P 500 futures rose 8.1 points and were above fair value, a formula that evaluates pricing by taking into account interest rates, dividends and time to expiration on the contract. Dow Jones industrial average futures gained 64 points and Nasdaq 100 futures added 11.25 points.

* European stocks were up about 1 percent, with oil majors such as BP and Total rising along with light crude futures, which climbed over $70 per barrel.

* The euro reached a one-year high against a broadly weak U.S. dollar as dealers took advantage of the greenback's gains the previous session to resume selling ahead of the Fed meeting and a Group of 20 summit later in the week. The dollar index <.DXY> tumbled 0.9 percent.

* The day's economic agenda includes Redbook's Retail Sales Index of department and chain store sales for September versus August at 8:55 a.m. (1255 GMT).

* At 10 a.m. (1400 GMT), a home prices index and a regional manufacturing survey will give investors further insight into the state of the U.S. economy.

* Samsung Electronics <005930.KS>, the world's biggest maker of memory chips, said on Tuesday it remains cautious about the sector's outlook even as the industry emerges from its two-year slump.

* The Dow industrials and the S&P 500 index fell on Monday as a drop in oil and other commodity prices hurt energy and materials stocks. But the Nasdaq rose, buoyed by a broker's upgrade in the biotechnology sector.

* The Dow Jones industrial average <.DJI> dropped 41.34 points, or 0.42 percent, to end at 9,778.86. The Standard & Poor's 500 Index <.SPX> fell 3.64 points, or 0.34 percent, to 1,064.66. But the Nasdaq Composite Index <.IXIC> gained 5.18 points, or 0.24 percent, to close at 2,138.04.

(Reporting by Rodrigo Campos; Editing by Theodore d'Afflisio)