You need to install any of the oriya unicode font to read or write oriya , commonly used unicode oriya font is Akshar . Please follow the instructions to install unicode oriya in your system.
There was no common oriya ascii structure for the old fonts. so each vendors use different oriya fonts with different keyboard layouts. this makes difficult with oriya users as they need to install each oriya font from different websites.
Unicode font is international and has common keyboard layout. Download unicode font for your language and install it on your system.