Marinate the lamb chops with salt, ground black pepper, ginger-garlic paste, turmeric powder, and 2 tablespoons of vegetable oil. Set aside in a refrigerator for an hour.
Meanwhile, heat 4 tablespoon of vegetable oil in a large saucepan or a wok, and add chopped green chile and onions. Stir-fry for 5 to 7 minutes or until golden brown.
Add curry leaves, ginger-garlic paste, and the dry spice powders and stir-fry for a minute. Pour in the fresh tomato purée and cook for 5 more minutes. Keep warm.
Remove the chops from the refrigerator and sear them on a hot skillet for a couple of minutes on each side. Place them on a roasting tray and cook in the oven for 4 to 5 minutes. Transfer to the saucepan and cook with the pepper masala for 3 to 4 minutes. Garnish with fried curry leaves and serve with Kerala Parotta (Kerala Paratha).