Cognomen Thangaraju (Thangaraju 
) , throughout the world, is quite a rare surname. The last name Thangaraju is habitual in Malaysia, where it is quite a rare surname, Singapore, and United Arab Emirates, where it is a rare surname. In absolute terms, it is commonest in Malaysia, India, and United Arab Emirates. Likewise, Thangaraju is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Thangaraju | United States, United Arab Emirates, Singapore, Malaysia, India |
| pugazhenthan thangaraju researcher |
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| saranya thangaraju researcher |
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| p. thangaraju Ph.D. Madurai Kamaraj University 2005 |
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| k. r. thangaraju Indian politician, IN |
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| p thangaraju researcher |
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