Grilled Chicken Tikka

Name: Grilled Chicken Tikka
Ingredients: ½ pounds, ⅞ ounces, weight Chicken Breasts, Boneless And Skinless; 2 Tablespoons Yogurt; 1 Tablespoon Lemon Juice; 2 teaspoons Olive Oil; 1 Tablespoon Ginger Garlic Paste; 2 teaspoons Garam Masala; ½ teaspoons Cinnamon Powder; ½ teaspoons Nutmeg Powder; ½ teaspoons Javantri / Mace Powder; 1 teaspoon Red Chili Powder; 1 teaspoon Coriander Powder (optional); ½ teaspoons Turmeric Powder; 1 teaspoon Chat Masala (optional); 1 teaspoon Pepper Powder; ½ teaspoons Salt; 1 whole Onion (cut Into Cubes); 6 whole Cherry Tomatoes; 1 whole Capsicum/Green Bell Pepper (stem And Seeds Removed, Cut Into Cubes); Optional For Garnish: Onion And Lemon