Is Up central obc certificate valid in DTU??
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No my friend.Caste certificate is issued from the state where you actually belong . In your case as I if you are belong to up(utrar pradeh ) so you can use your up OBC for any government seat of uttar Pradesh and central government as well.
If you want to know more about DTU check out the link given in below https://www.google.com/amp/s/www.careers360.com/university/delhi-technological-university-delhi/amp
I hope it will help you