Cognomen Ponnusamy (Ponnusamy 
) , globally, is a common surname. The last name Ponnusamy is habitual in Malaysia, where it is quite a common surname, United Arab Emirates, where it is quite a rare surname, and Mauritius. Not in comparison with a country's population, it is commonest in Malaysia, India, and United Arab Emirates. Very seldom, Ponnusamy is the forename as well as the last name.
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| Ponnusamy | Indonesia, United Arab Emirates, Sri Lanka, Malaysia, India |
| k. ponnusamy Indian politician, IN (b. 1954) |
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| leslie ponnusamy South African cardiologist (1958-2021), ZA (b. 1958) |
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| ponnusamy, p. Indian politician, IN |
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| murugavel ponnusamy researcher |
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| rajesh ponnusamy researcher |
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| k. ponnusamy Indian Politician |
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| t. ponnusamy Indian politician, IN |
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| sasikumar ponnusamy researcher |
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| ponnusamy saminathan Ph.D. Indian Institute of Technology, Kanpur 1989 |
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| shunmuga sundaram ponnusamy researcher |
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| ramasubramanian ponnusamy researcher |
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| ponnusamy palanisamy researcher (ORCID 0000-0001-7005-9604) |
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| suguna ponnusamy researcher (ORCID 0000-0002-8385-2799) |
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| a. ponnusamy Indian politician, IN |
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| ponnusamy senthil kumar researcher |
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