Hi @Arjuntina ,
I wonder whether you could post the following terminal commands:
nmcli networking -a
nmcli device -a
nmcli connection -a
The last command will show the available wifi networks nearby or saved.
You can also try to use the terminal command, in order to connect you computer to internet.
nmtui
You will enter in a text based interface and configure the connection manually.
You can also read this post in order to give us some additional information.
‘[HowTo] Provide System Information’
Hope it help, regards