Chicken shawarma rice

Name: Chicken shawarma rice
Ingredients: 4 cloves garlic, minced, divided; 1 1/2 tsp. coriander powder; 1 1/2 tsp. cumin powder; 2 1/2 tsp. cardamom powder, divided; 1 tsp. paprika; 1 tsp. chilli powder; To taste, salt; To taste, black pepper powder; 3 tbsp. lemon juice; 5 chicken thighs, bone in, skin on -; 1/2 tbsp. olive oil; 1 onion, finely diced; 1 1/2 cups basmati rice, washed, drained; 1 1/2 cups chicken broth; 2 cups water; 2 sticks cinnamon; 1-2 cups chickpeas, boiled; 1/4 cup raisins or sultanas (); 2 tbsp. Cilantro/coriander leaves, chopped