Hey Jyoti,
Your profile suggests that you're from Uttar Pradesh. So I'm assuming you've applied for UPSEE MCA 2021.
And you haven't received any notification regarding the exam nor you're able to access your account.
As your paper is on 10th you should immediately contact their helpline number or drop a mail at their mail handles and provide them with your app/reg. number.
Official Website: https://upsee.nic.in/
Helpline number: 1800-180-0161 (10:00 am to 5:00 pm)
Email: upsee.helpdesk@aktu.ac.in (mailto:upsee.helpdesk@aktu.ac.in)
Hope this helps.
All the Best!
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