Peel and devein shrimp, wash with vinegar or lemon juice. Season and marinade shrimp with salt, black pepper and dried thyme. Set aside
Prep aromatics, dice onion, mince garlic, chopped culantro, tomato and pepper
To a wide pot add oil on medium high heat, begin sauteing onion, garlic, pepper and culantro till fragrant
Add curry powder, garam masala, geera, turmeric, salt, black pepper and thyme. Saute spices to bloom for 1-3 minutes then add tomatoes with 1/4 cup water. Let aromatics and spices saute to form a thick paste
After 5-7 minutes, the oil should separate from paste, add shrimp. Fully coat and combine shrimp with bunjal paste. Allow shrimp to release its own water and cook for 7-10 minutes
Add tablespoon of water if shrimp begin to stick to pot
After 10 - 15 minutes the shrimp should be fully cooked and heavily coated with masala
Garnish with thinly sliced scallions and served over rice or enjoy with roti