Rinse shrimp thoroughly with water and drain well.
Add them to a bowl along with turmeric powder, lime juice, black pepper powder, and salt and mix well. Set aside.
Fry The Shrimp
Heat coconut oil in a large pan over medium-high heat.
Once the oil is hot, add the marinated shrimp to the pan and fry for 2-3 minutes, stirring occasionally.
Remove the fried shrimp on a plate and set aside.
Make The Shrimp Moilee Curry
Heat the oil in the pan for a few minutes, allowing the water released by the shrimp to evaporate.
Now add cloves, green cardamoms, cinnamon, mustard seeds, curry leaves, and green chilies (slit into half), and fry for 3-4 seconds.
Add onions, ginger, and garlic, and cook until the onions turn pinkish. (5-6 minutes).
Add coriander powder, turmeric powder, and black pepper powder, and cook for 15-20 seconds.
Reduce the heat to low.
Now add thin coconut milk and tomato and cook for 20-30 seconds.
Add ½ cup of water and mix until well combined.
Cover the pan and cook the curry for 10 minutes, stirring occasionally.
Now add the fried shrimp to the pan and cook for 2 minutes.
Finally, add thick coconut milk, tamarind paste, and garam masala and mix well. Cook on low heat until the curry comes to a gentle simmer. Do not overcook; otherwise, the curry may split.
Check for salt and tamarind and add more if needed. Serve hot.