Chicken 65

Name: Chicken 65
Ingredients: 1/4 cup plain whole-milk strained (Greek-style) yogurt (such a Fage); 1 large egg; 2 tablespoons ginger-garlic paste (see Note); 1 1/4 teaspoons kosher salt, plus more to taste; 1 teaspoon Kashmiri chili powder (such as Burlap and Barrel); 1 teaspoon ground coriander; 1 teaspoon ground cumin; 2 tablespoons fresh lemon juice, divided; 20 curry leaves (from 2 large curry sprigs), divided; 1 1/2 pounds boneless, skinless chicken thighs, cut into 3/4-inch pieces; Neutral cooking oil (such as canola oil); 1/2 cup cornstarch; 4 large garlic cloves, thinly sliced (about 3 tablespoons); 1 Fresno chile, seeded and thinly sliced (about 2 tablespoons); 1 serrano chile, seeded and thinly sliced (about 2 1/2 tablespoons); Red onion slices, lemon wedges