Chingudi Chhecha Odisha Style Shrimp Curry

Name: Chingudi Chhecha (Odisha-Style Shrimp Curry)
Ingredients: 1⁄2 cup mustard or canola oil; 2 tbsp. black mustard seeds; 2 tsp. cumin seeds; 15 fresh or frozen curry leaves; 5 chiles de árbol, stemmed; 15 cloves garlic, thinly sliced; 1 small red onion, sliced; 2 lb. medium shrimp, peeled and deveined, tails off; 1 tsp. ground turmeric; 3 small green Thai chiles or 1 1/2 serranos, minced; Kosher salt, to taste; 1⁄2 cup packed cilantro leaves