Cut pork into medium size pieces, remove outer layer of the skin, wash and keep aside.
Grind together red chilly powder, black pepper, coriander powder, turmeric powder, cloves, cinnamon, cardamom and cumin seeds and keep aside.
Cook the pork along with some salt and a pinch of turmeric powder in a pressure cooker upto 1 whistle.
:- Do not add water.
Heat about 4 tbsp of oil in a pan.
Add ginger, garlic and onions and sautT on high flame, till golden brown.
Add the ground ingredients and sautT on a low flame for about 3 v 4 mins.
;- Take care not to burn the masala.
Add tomatoes and a pinch of salt and sautT, till the tomatoes get mashed up and oil starts separating from the masala.
When masala is done, add the cooked pork, vinegar, soya sauce, chicken bullion, salt and 1 cup of water and stir, till the pork is completely soaked in the masala.
Cover and cook on a medium flame for approx 10 min. stirring occasionally.
Add curry leaves and stir well.
Cook for another 5 - 10 mins.
When done, remove from the flame.
Garnish with coriander leaves, if desired.
:- Serve hot with white rice or roti.