Marinade shrimp in salt, haldi, laal mirch Roast and grind 4 tbsp coriander seeds + 1 turmeric root + Grind -> Vatan 1 Grind grated coconut + 1/3rd onion (american) + 40 - 50 pepper corns -> Vatan 2 Take 1 tbsp oil. Fry 3 tbsp of vatan 1 adding little bit of water if it starts burning. Add 3 tbsp imli juice All of the vatan 2 so that the raw smell goes away but not too much otherwise the gravy becomes too rich. Keep adding water if required. Add the cooked prawns. Add 1 cup of coconut milk + Salt + 2 - 3 Green chillies. Let simmer for 5 minutes