Hindi Keyboard for N9 has been designed mainly for Indian/Hindi Language known people who like to send SMS/Chat in Hindi/Devanagari script. The keyboard has been designed as per International Maliit keyboard and fits for the perfect usability on N9/N950. For proper guide on how to use certain symbols/words, please follow the Documentation.
Please enable the keyboard from Settings>”Time and Language”>Text Input>”Installed input methods” . And Swipe your current keyboard to select this.