Hii!
As SSC does not provide application form corrections facility, you need to fill the form with correct details at one go. Now, as you have already filled the wrong details, what you can do is, fill up another form with different phone number and email id and fill all the details with full carefulness. Check for any mistakes before submission. You can fill up the form before 31 January, 2021. Giving wrong details may cancel your candidature.
Hope this helps.
Good luck!

Staff Selection Commission Combined Graduate Level Exam

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