Blend tomato, cilantro, lemon juice, ginger, curry powder, sunflower oil, garlic, and salt in blender until smooth.
Marinate meat 1 to 5 hours.
If using bamboo skewers, soak in water for at least 30 minutes.
Thread meat onto skewers.
Grease grill rack of a gas or charcoal grill. Bring a gas grill to medium-high heat. If using charcoal, spread gray ash-covered coals evenly over the grill, place the grate, then cover and heat the grill for 5 minutes.
Grill kebabs about 6 minutes, turning once halfway through grilling, until internal temperature reaches 145°F.