Put a sauté pan on the stove and heat it up. Add the oil/ghee to it and let it begin to smoke a bit. Once that happens, add the cumin seeds and let them splutter.
Quickly add the green chillies and onions to the pan. Sauté in medium flame until the onions turn translucent.
Next, add the ginger garlic paste and stir it around for a few seconds. Then add the chopped tomatoes along with the turmeric powder, chilli powder, coriander powder, amchur powder, garam masala, cumin powder, fennel seed powder, and the salt. Sauté it until the tomatoes are mushy.
Finally add the paneer and stir to bring it all together. Add few tablespoons of water if required. Cover and cook for 2-3 minutes or until the crumbled paneer bits are all soft.
Sprinkle some coriander leaves on the paneer bhurji, remove the pan from heat and serve it immediately!