Hi Msians.... may I know why Yindian in your country have to put A/L and A/P in between their name?

e.g Kali A/L Muthu
Why can't they just put Kali Muthu?

As for Meles, I think modern Meles will not put Najib Bin Razak and put Najib Razak instead right? They minus out the Bin.
Correct me if ayam wrong.

Tenkiu.... in advance as I confuse some times in this matter...