Chicken 65 Indian Fried Chicken

Name: Chicken 65 (Indian Fried Chicken)
Ingredients: For the chicken and the marinade:; 6 boneless, skinless chicken thighs; 1 tablespoon Kashmiri red chili powder or Hungarian hot paprika; 1/2 teaspoon ground coriander; 1 tablespoon lemon juice, plus more as desired; 2 cloves garlic, crushed; 1 one-inch piece ginger, grated; Salt and fresh ground black pepper, to taste; For the seasoned coating and yogurt sauce:; 4 tablespoons cornstarch; 2 tablespoons rice flour; 2 tablespoons all-purpose flour; 1 1/2 teaspoons Kashmiri red chili powder or Hungarian hot paprika, divided; 1/4 teaspoon salt and fresh ground black pepper, or to taste; 1 egg, beaten; Neutral oil, for deep-frying; 1/4 cup plain Greek yogurt; 1/2 teaspoon ground cumin; 1/2 clove garlic, crushed