In a bowl add chicken,1/2 tsp freshly ground pepper lemon juice and salt. marinate chicken well and rest aside for 1-2 hours
Heat oil in a pan. Add curry leaves, onions and green chillies. Saute until onions turn light brown
Add ginger garlic paste and saute until raw aroma disappear
Add turmeric, coriander powder and 1.5 tbsp freshly ground peppercorns, chicken masala and mix well for 1 minute
Add tomato paste and mix well for 1 minute
Add chicken, little salt and mix well until chicken is well coated with masala
Cover and cook for 10 minutes stirring occasionally
Remove the lid. Increase the heat, roast until water has evaporated.
Garnish with little pepper. Serve hot with lemon wedges