Hello Dear Student,
No, you can not participate in the Counselling after due date. Counselling schedule is fixed by Authorities.
And According to Rules, you need to present Physically for the Document verification and Admission Process because you need to give your signature and thin on many documents.
But If you are not unable to participate in the Counselling due to any valid reason then you should talk to IPU Counselling Authorities, they will give you the solution, If they allow then they can give you permission to send your Parents with all the relevant Documents for Counselling process. But don't miss the Dates of Counselling If you are interested in Current Round of Seat Allotments. However If you miss this Round then you can participate in Next Round (if there any).
To know more about IPU Counselling, Please visit on this link: https://university.careers360.com/articles/ip-university-counselling
All the Best
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