Combine oil with lemon juice, garlic, curry powder, chili powder, garam masala, coriander, salt, pepper, and sugar. Toss chicken in marinade and let sit for 30 minutes at room temperature.
Lay chicken wings on a baking sheet and roast for 10 minutes. Flip the chicken and cook another 10 minutes or until no longer pink.
Melt butter in a sauce pan over medium heat. Add cilantro and lemon pepper, stirring to combine and simmer for 30 seconds. Drizzle seasoned butter over chicken wings, tossing to coat. Serve immediately.