COLOMBO Aug 15 (Reuters) - Sri Lankan shares ended at more than 11-week high on Monday as investors bought beverage and banking shares amid foreign buying into the island nation's risk assets boosted sentiment.

The benchmark Colombo stock index ended up 0.93 percent, or 60.46 points, at 6,582.60, its highest close since May 25.

"The market moved up on thin volumes, but the market is looking better and better with the more stability coming into the market," said Reshan Kurukulasuriya, chief operating officer of Richard Pieris Securities (Pvt) Ltd.

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Investors hoped that the economic fundamentals would improve after the central bank on July 28 surprised the markets with a 50-basis points raise in its main interest rates aimed at curbing stubbornly high credit growth.

Foreign investors net bought 62.59 million rupees ($430,172) worth of shares, extending the net foreign inflow to 1.55 billion rupees worth of equities in the last 14 sessions.

However, they have sold 3.26 billion rupees worth of shares so far this year.

Turnover stood at 675.1 million rupees, less than this year's daily average of around 731.3 million rupees.

Shares in Nestle Lanka Plc jumped 10.25 percent while Ceylon Tobacco Company Plc gained 1.9 percent and Cylon Cold Store Plc rose 4.96 percent.

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Shares in biggest listed lender Commercial Bank of Ceylon Plc rose 0.96 percent.

Analysts said investors also shrugged off a Supreme Court order asking the parliament to stop considering a bill to raise the value-added tax as the draft had not followed due process.

The move could put in jeopardy the government's ambitious fiscal consolidation plan to reduce the budget deficit to 5.4 percent of gross domestic product from last year's 7.4 percent. ($1 = 145.5000 Sri Lankan rupees) (Reporting by Ranga Sirilal and Shihar Aneez; Editing by Gopakumar Warrier)