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  <headerData>
    <submissionType>13F-NT</submissionType>
    <filerInfo>
      <liveTestFlag>LIVE</liveTestFlag>
      <filer>
        <credentials>
          <cik>0001434871</cik>
          <ccc>XXXXXXXX</ccc>
        </credentials>
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      <periodOfReport>03-31-2020</periodOfReport>
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    <coverPage>
      <reportCalendarOrQuarter>03-31-2020</reportCalendarOrQuarter>
      <isAmendment>false</isAmendment>
      <filingManager>
        <name>Cairnhill Investments (Mauritius) Pte Ltd</name>
        <address>
          <ns1:street1>C/O IQ EQ CORPORATE SERVICES (MAURITIUS)</ns1:street1>
          <ns1:street2>33, EDITH CAVELL STREET</ns1:street2>
          <ns1:city>PORT LOUIS</ns1:city>
          <ns1:stateOrCountry>O4</ns1:stateOrCountry>
          <ns1:zipCode>11324</ns1:zipCode>
        </address>
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      <reportType>13F NOTICE</reportType>
      <form13FFileNumber>028-13098</form13FFileNumber>
      <otherManagersInfo>
        <otherManager>
          <cik>0001021944</cik>
          <form13FFileNumber>028-13088</form13FFileNumber>
          <name>Temasek Holdings (Private) Ltd</name>
        </otherManager>
      </otherManagersInfo>
      <provideInfoForInstruction5>N</provideInfoForInstruction5>
    </coverPage>
    <signatureBlock>
      <name>Rooksana Shahabally</name>
      <title>Director</title>
      <phone>230-213-9912</phone>
      <signature>/s/ Rooksana Shahabally</signature>
      <city>Port Louis</city>
      <stateOrCountry>O4</stateOrCountry>
      <signatureDate>05-15-2020</signatureDate>
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