Use the Virama (often the 'f' key or similar, depending on layout) to join two consonants, such as "କ + ୍ + ଚ" to create "କ୍ଚ".
Akruti provides several ways to map Odia characters to your standard QWERTY keyboard: akruti 7.0 oriya keyboard layout pdf
Works with MS Office, PageMaker, and Illustrator. Use the Virama (often the 'f' key or