Heat mustard oil in a pressure cooker over medium-high heat.
When the oil is hot, add cumin seeds, cinnamon stick, cloves, and whole black peppercorns and fry for 3-4 seconds.
Now add coriander powder, turmeric powder, Kashmiri red chili powder, cumin powder, and garam masala powder, and cook for 3-4 minutes until oil starts to separate from the sides of the pan.