I am getting this error while running sudo apt-get update and it is telling that it was not able to fetch

Question

Using sudo apt-get update

[sudo] password for avinash:

Output of ifconfig,cat /etc/network/interfaces,cat /etc/resolv.conf Commands

Output of sudo lshw -C network

Output of ip route,ip rule,ip link,iwconfig

Output of lspci -nnk

Output of dmesg| grep net

Output of systemd-resolve --status

Output of ping -c 5 8.8.8.8

Output of mtr 8.8.8.8

I get:

Err:1 http://security.ubuntu.com/ubuntu bionic-security InRelease
  Could not resolve 'security.ubuntu.com'
Err:2 http://packages.microsoft.com/repos/vscode stable InRelease              
  Could not resolve 'packages.microsoft.com'
Err:3 http://dl.google.com/linux/chrome/deb stable InRelease                   
  Could not resolve 'dl.google.com'
Err:4 http://in.archive.ubuntu.com/ubuntu bionic InRelease            
  Could not resolve 'in.archive.ubuntu.com'
Err:5 http://in.archive.ubuntu.com/ubuntu bionic-updates InRelease
  Could not resolve 'in.archive.ubuntu.com'
Reading package lists... Done
W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/bionic/InRelease  Could not resolve 'in.archive.ubuntu.com'
W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/bionic-updates/InRelease  Could not resolve 'in.archive.ubuntu.com'
W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/bionic-backports/InRelease  Could not resolve 'in.archive.ubuntu.com'

What should I do to fix this?