Could I know how can I control the AC line(230V-13A)( I mean cut off and on) with the help of SSR relay
Which SSR relay? Typically, they have a 5V side. Connect one side to a digital pin. Connect the other side to ground. Activate the relay by setting the digital pin HIGH, and deactivate it by setting the pin LOW.
which rating relay should I use?
One that matches the load.