By Amelia Tan

NANYANG Technological University (NTU) has climbed four positions to reach No. 73 in a ranking of the world's top 200 universities.

It appears to be making its way back up after tumbling from 69th in 2007 to 77th last year.

The National University of Singapore (NUS) kept its 30th spot in the Times Higher Education-Quacquarelli Symonds (QS) World University Rankings.

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