Can i make another account with same username? if yes how can i take permission for that?
It is against Fiverr TOS to have more than one account. If you make another one then you are at risk to lose both accounts.
Edit: Read these TOS which you should have already done when you signed up on the Fiverr site. I have read them many times as have other experienced sellers.
No. You can not…
The rules of this site clearly state: 1 person = 1 account. You cannot, and will not have permission to create multiple accounts. Please read the Terms of Service.