Heat Mustard Oil in a pan and temper it with Hing, Kalo Jeere. Then add the ground Peas paste with Chili Paste and Ginger Paste.
Stir it well with some Salt and Red Chili Powder.
Fry it till it dries up and looks like wet sand. That is, if you pinch off some of it and try to roll it in your palm, it should hold its shape yet not be sticky!
Allow it to cool down completely before stuffing them in kachoris.