Dr Mahathir Mohamad unveils the new Putrajaya signage in Dataran Putra, with the Prime Minister's Office visible in the background.

The prime minister attended a ceremony to launch the multicoloured, stainless steel sign today, along with Putrajaya Corporation (PPj) president Aminuddin Hassim.

According to Aminuddin, the graphics adorning the sign will be changed every six months.