Heat a pan, add coriander seeds or sabut dhania. Roast it until you get a nutty aroma. Remove the roasted dhania onto a bowl for cooling.
In the same pan, add chana dal and roast it. Empty the contents in the bowl.
Repeat the process of roasting the toor dal.
Now add methi seeds, black pepper and cumin seeds together. Roast them quickly as cumin tends to brown fast.
Lastly, dry roast the red chillies for a few seconds.
Collect all the roasted ingredients in a bowl and allow it to cool completely.
Before grinding, add the turmeric powder and the asafoetida or hing.
Grind the spices in batches so that the grinder doesn't heat too much. It should be ground to a fine powder texture.
Allow it to cool completely before transferring to a clean and dry glass jar with lid