Everybody likes chat, but they are afraid to eat the market chat because it might not be hygienic. Even if we make chat at home, we still need the chat masala.
Roast the cumin seed and asafetida on a dry pan till they turn light brown. If the Tatri is in big pieces then break it into smaller pieces.
Grind all the spices along with salt in a grinder. Your chat masala is ready. You can store this chat masala in an airtight container for up to 6 months. You can use this chat masala in chat and also in salads, soaked chickpea, sweet corn etc.