Take a large mixing bowl and put cubes of pork in it along with salt and vinegar. Mix them properly and set aside for two hours.
While marinating the pork, you will prepare a spice paste. For that, you will grind peppercorns, cumin seeds, red chillies, paprika, cardamom pods, cinnamon and cloves. Then you will put garlic, ginger, turmeric and vinegar. Mix all the ingredients properly.
Now you will heat the oil in a wide pan and put the spice paste in it. Cook until it changes its colour to golden brown.
Add the cubes of pork in it and cook until the meat gets juicy. Add a little bit water and let it simmer for 40 minutes. You are all set to serve this delicious dish to your guests.