How to connect apple wireless mouse with iMac

When you use the mouse on imac and then use the same mouse on MacBook you can easily connect with the help of the touchpad of the MacBook but the same mouse can’t connect easily on the iMac again because you don’t have a touchpad on the iMac

PS: I didn’t want another non-iMac user to spend another 30 min of his life dealing with this. Hence this post.
Happy coding !

Quick Steps
1.) Cmd + space
2.) Write mouse and connect 
3.) Press continue

Before

After

For that
1.) Simply press Command + space

2.) Write mouse on the search bar and it automatically tries to connect to your mouse( make sure your mouse is charged and the back button is on)

3.) Then simply press continue

Viola, you are good to use your mouse again.