Make the Kofta Mixture: In a bowl, combine the lamb, onion, ginger, garlic, garam masala, cumin, chili powder, mint, cilantro, and salt. Mix thoroughly with your hands until everything is evenly combined.
Shape the Koftas: With damp hands, form small balls about 4 cm in diameter. Place them on a plate while you heat the oil.
Cook the Koftas: Heat a few tablespoons of vegetable oil in a large frying pan over medium heat. Fry the koftas in batches for 8–10 minutes, turning to brown all sides, until fully cooked through. Transfer to paper towels to drain.
Prepare the Spiced Yogurt: In a small bowl, whisk the yogurt with cinnamon, chili powder, and a pinch of salt. If you prefer a thinner consistency, add a splash of water and stir again.
Serve: Arrange the hot koftas on a serving plate. Drizzle the spiced yogurt over them. Sprinkle with extra chili powder or cinnamon if you like, and enjoy with warm flatbread.