Roast the Spices: In a pan, dry roast the green chillies and garlic cloves until they develop black spots. Separately, roast the peanuts until crunchy and the sesame seeds until they pop and turn slightly golden.
Light Roasting: Lightly roast the cumin seeds and fennel seeds for a few seconds just to release their aroma.
First Grind: In a mixer jar/blender, add the roasted chillies, roasted garlic, cumin seeds, fennel seeds, and fresh coriander leaves.
Pulse: Use the "pulse" mode (turn the knob on and off) to grind these ingredients coarsely. Do not make a fine paste.
Add Nuts & Seasoning: Add the roasted peanuts, roasted sesame seeds, Amchur powder, and salt to the jar.
Final Crush: Pulse the mixture one more time briefly. You want the sesame seeds to just crush slightly (split in two or three parts) and maintain a coarse, crunchy texture.
Serve: Your Tilacha Thecha is ready! Since all ingredients are roasted, no tempering or cooking is needed. Transfer to a bowl and serve.