try this ( sudo rm -rf /etc/resolv.conf ) then ( sudo -s ) and then ( echo 'nameserver 8.8.8.8' >/etc/resolv.conf )

Dear ambrishakm,

I hope you doing well,
i did as you told me but still the issue exists

┌──(codex㉿codex)-[~]
└─$ sudo rm -rf /etc/resolv.conf
[sudo] password for codex:

┌──(codex㉿codex)-[~]
└─$ sudo -s
┌──(root㉿codex)-[/home/codex]
└─# echo 'nameserver 8.8.8.8' >/etc/resolv.conf

┌──(root㉿codex)-[/home/codex]
└─# apt update
Get:1 http://kali.download/kali kali-rolling InRelease [30.6 kB]
Ign:2 http://kali.download/kali kali-rolling/main amd64 Packages
Ign:3 http://kali.download/kali kali-rolling/main amd64 Contents (deb)
Ign:4 http://kali.download/kali kali-rolling/contrib amd64 Packages
Ign:5 http://kali.download/kali kali-rolling/contrib amd64 Contents (deb)
Ign:6 http://kali.download/kali kali-rolling/non-free amd64 Packages
Ign:7 http://kali.download/kali kali-rolling/non-free amd64 Contents (deb)
Err:2 http://kali.download/kali kali-rolling/main amd64 Packages
403 Forbidden [IP: 104.18.103.100 80]
Ign:2 http://kali.download/kali kali-rolling/main amd64 Packages
Err:3 http://kali.download/kali kali-rolling/main amd64 Contents (deb)
403 Forbidden [IP: 104.18.103.100 80]
Ign:3 http://kali.download/kali kali-rolling/main amd64 Contents (deb)
Err:4 http://kali.download/kali kali-rolling/contrib amd64 Packages
403 Forbidden [IP: 104.18.103.100 80]
Ign:4 http://kali.download/kali kali-rolling/contrib amd64 Packages
Err:5 http://kali.download/kali kali-rolling/contrib amd64 Contents (deb)
403 Forbidden [IP: 104.18.103.100 80]
Ign:5 http://kali.download/kali kali-rolling/contrib amd64 Contents (deb)
Err:6 http://kali.download/kali kali-rolling/non-free amd64 Packages
403 Forbidden [IP: 104.18.103.100 80]
Ign:6 http://kali.download/kali kali-rolling/non-free amd64 Packages
Err:7 http://kali.download/kali kali-rolling/non-free amd64 Contents (deb)
403 Forbidden [IP: 104.18.103.100 80]
Err:2 http://http.kali.org/kali kali-rolling/main amd64 Packages
403 Forbidden [IP: 104.18.103.100 80]
Ign:3 http://http.kali.org/kali kali-rolling/main amd64 Contents (deb)
15% [Waiting for headers]E: Transaction http://http.kali.org/kali/dists/kali-rolling/InRelease was already aborted and is aborted again
Err:4 http://http.kali.org/kali kali-rolling/contrib amd64 Packages
403 Forbidden [IP: 104.18.103.100 80]
Ign:7 http://kali.download/kali kali-rolling/non-free amd64 Contents (deb)
Ign:5 http://http.kali.org/kali kali-rolling/contrib amd64 Contents (deb)
17% [Working]E: Transaction http://http.kali.org/kali/dists/kali-rolling/InRelease was already aborted and is aborted again
Err:6 http://http.kali.org/kali kali-rolling/non-free amd64 Packages
403 Forbidden [IP: 104.18.103.100 80]
Reading package lists... Done
E: Transaction http://http.kali.org/kali/dists/kali-rolling/InRelease was already aborted and is aborted again
E: Transaction http://http.kali.org/kali/dists/kali-rolling/InRelease was already aborted and is aborted again

Something is blocking you the access to http://kali.download/kali, maybe a firewall in the network you're connected to.
You could try using another mirror

apt-get install --fix-missing

apt-get upgrade

Y

Reporter has not replied back in 2 months, and unfortunately without more information, this bug report isn't actionable. Closing.