How to send custom notifications in KDE ?

As we all know that Ubuntu release its event updates with notifications and of course Kubuntu also does the same job but with different style .

but is there any way to get Kubuntu notifications in Ubuntu.

EDIT: Ok here knotify4 will do the job but how can i send custom notification alerts from that ?

You can use "notify-send" in KDE too. Such as this

notify-send "custom kde notification"

It works in default KDE setup. I think, KDE notification also uses "notify-send"'s library.

From a later comment by OP, I understand the requirement of placing the notification at the top-right position of the screen like Unity's notify-osd. It's very simple to achieve.

First send a custom notification using notify-send "custom notification" and then drag the notification window to your desired location. From this moment, your notification will now be appear on your desired location.