Hello,
It may not be possible to accept the supplementary mark sheets. You have to get your original mark sheet which specifies that your marks in every subject and says that you have cleared it with a good grade.
any way it's better to go n talk to your teacher in your institute regarding the marksheet.
you may not be possible to go for UPSEE if you don't get your original marksheet.
For more information please check the information broucher:- https://upsee.nic.in/publicinfo/Handler/FileHandler.ashx?i=File&ii=265&iii=Y
Hope it helps!
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