Walkman Chanakya 905 Font Shortcut Key Work

How to Use the Walkman Chanakya 905 Font — Shortcut Keys & Quick Tips

2. Half-Form and Conjunct Shortcuts (The "Laghu" Trick)

The "Half" Character (Halant):

How to type the Devanagari tra letter? - keyboard layout - Ask Ubuntu

Use a font/keyboard switcher utility: