Cut onion, tomato into small pieces and grind them into paste.
Cut thin slices of green chili.
Mix red chili powder, salt, turmeric powder, yogurt, ginger, garlic paste and oil. Then add onion tomato paste on to the mixture and mix well. Marinate the chicken with this mixture for an hour.
Heat oil in a pan. Add green chilies, and black pepper powder and fry for 30 sec.
Add chicken marinade and fry until half cooked. Stir occasionally.
Add little water to make thick gravy and bring it to boil.
Cover and cook for 8-10 min on low heat