! ல் @ லா # லி $ லீ ... (These vary heavily by specific font version, usually used for numerals).

The keyboard layout resets after reboot. Solution: Remove other Tamil keyboards, keep Kal 001 as default. Use AutoHotkey script to force load the layout.

: The KAL 001 font itself is often preferred over standard system fonts like Latha for its elegant, professional appearance in print. The Digital Orientalist Steep Learning Curve

: For beginners, this layout is difficult to master because it lacks phonetic intuition. You must memorize the exact position of every Tamil letter on the keyboard. Professional Speed

: It doesn't require complex rendering engines, making it reliable for heavy design files in legacy software. Aesthetic Appeal