Hello aspirant,
YES, you can fill a new form again for DU (Delhi University) registration and could apply it with a new Email ID and Mobile Number for the same. But, if you don't have the EWS Certificate at time of registration and if you applied for EWS Category, then what you can do is that you can submit the Self-declaration(or affidavit) form and could submit it in the DU application form. The Self-declaration form for EWS Category will be the proof that you do not have the EWS certificate at present time of the registration and you will submit the same when you will have the new and fresh certificate at the time of counselling.
This way will help you in availing the benefits as a EWS Category candidate.
Furthermore, you can also register yourself as an UR(Unreserved) category as well.
I hope that this will help.
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