SSH works on port 22 by default. However, this port is blocked by the college firewall by default.
The solution is to SSH on port 443, which is not blocked.
In the file /etc/ssh/sshd_config , add the following line:
To connect over port 443, just use the -p 443 flag. eg. ssh -p 443 <user>@<host>
Let me know if you have any problems.
FYI: @Princedhaliwal @crypton3535 @pola07 @kvibhore