Heat oil in a pan/pressure cooker. Add finely sliced onion, green chillies, curry leaves and salt.
Saute until it becomes light brown.
Grind together ginger, garlic, pepper powder, chilli powder, coriander powder, turmeric powder, garam masala, ani seeds powder, vinegar.
Add this blended spice into the pan/pressure cooker.
Mix the spice blend with the sautéed onions and other ingredients well.
Add water and add enough salt into the gravy.
Mix well. Then add beef and mix it again.
Cook it until beef is done. It would take up to 2 whistles normally. Onion gets mashed into the gravy, by this time.
Add coriander leaves and boil till gravy has thick consistency as you desire. If you want to make it spicier, add some more pepper powder at this time. ** Coriander leaves is optional.
Serve it with boiled rice, neychoru/ghee rice, appam, parotta, puttu or chappathi.. Enjoy :)