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According to the official detailed notification of TS EAMCET All original certificates and 1 set of Xerox copies of all the documents is needed. So, your 10th TC original certificate is also required along with the Xerox copy.
You can check the pdf file of the detailed notification at this link- https://tseamcet.nic.in/TSEAMCET2020DETAILEDNOTIFICATION.pdf
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