On Display Indication of Active Constant (K): Easier technique for repeat Calculation for +, -, ÷, x . Benefits: reduces any chances of manual error in repeat calculations. E.g. Press  [X] [X] (K is shown on screen) to set “Multiply by 2” as constant. Enter, 10, and keep pressing [=] to get 20, 40, 80, and so on.
Square Root & Percentage Key
Indian Comma Marker for easy reading of numbers in Lakh & Crore. Backspace Key
Operation symbol on display (+, -. x, ÷) indicates the status of operation you are currently performing
Extra Large Display: Larger display makes more data easier to read
Key Rollover: Key operations are stored in a buffer, so nothing is lost even during high-speed input