Bengali shrimp with eggplants

The traffic has been getting worse by the day and today it took me 11/2 hours to get home. Anyway either it takes me 10 minutes or 100 minutes I have hungry mouths to feed and yummy shrimp dish is for dinner

Bengali shrimp with eggplant (Shrimp with eggplant in sweet and spicy mix)

Bengali Shrimp with Egg Plant

Ingredient 

1. 1 large egg plant cut into medium cubes
2. 1 large onion thinly sliced
3. 1 tsp. garlic paste
4. 4,5 green chilies slit lengthwise 
5. 1 medium tomato coarsely chopped
6. 15-20 medium sized prawns cleaned
7. 1 tsp. turmeric powder
8. 1 tbsp red chili powder
9. 1 tsp. nigella seeds
10. Coriander leaves
11. Salt
12. Sugar
13. 11/2 tablespoons oil

Mix the prawns with turmeric powder, salt and keep marinated for 15 mins. Heat oil in a pan and fry prawns till they turn golden. Do not over fry the prawns.Otherwise they will turn rubbery. Remove and keep it reserved for later use. 
Take half of the fried prawns and make a coarse paste of it.
Temper the same oil with kalonji and wait till it splutters. Add sliced onions and green chilies to it. Fry on medium high heat till they turn light brown. Add turmeric and chili powder to it. 
Add garlic paste and saute for a while. Throw the eggplant cubes into the pan and mix well with spices. Add chopped tomato to it. Sprinkle salt and sugar to your taste and mix them well. 
Cook it covered till the eggplants become soft but not mushy and then add fried prawns along with the prawn paste and mix it well. Wait till the oil starts oozing out from the sides. Remove from heat and finish it off with freshly chopped coriander leaves.