Chingri Chamatkari(Bengali style Prawn Curry)

Got this recipe from "Sananda"...I thought it's similar to Chingri'r malai curry,but the taste is different. ..
Ingredients:
King prawns:5-6
Mustard oil:2 tbsp
Ghee:1 tbsp
Bay leaf:1[optional]
Whole garam masala:cinnamon,clove,green cardamom:2,each[optional-this was not included in the recipe,but I cant tolerate sea prawn's smell!]
Garam masala powder:1/2 tsp
Fennel paste:1/2 tsp
Cumin-coriander paste:1 tsp[make a paste of fennel,whole cumin & coriander at a time]
Ginger-garlic paste:2 tsp
Kashmiri chilli powder:1 tsp
Red chilli powder:1 tsp
Tomato puree:2 tbsp
Raisin paste:1 tsp
Coconut cream(thick):1/2 cup
Turmeric
Salt
Sugar:1/2
Lemon juice:1 tbsp

Method:
Clean & devein the prawns.

Rub with turmeric,salt & lemon juice & keep for 10 mins.[I rubbed a pinch of kashmiri chilli powder,too]

Heat mustard oil.

Fry the prawns till they turn golden.

Remove from pan.

Heat ghee & temper with whole garam masalas & bay leaf.

Add ginger-garlic paste & stir continuously till the colour changes.

Add remaining ingredients except garam masala powder & coconut milk.

Cook till oil separates.

Add coconut milk & garam masala powder.

Cook till gravy thickens.

Serve with rice or polao.