Heat oil in a heavy bottom skillet. Add onions, green chillies and green beans, fry for 5minutes. add ginger garlic paste, 1/2 spoon salt and fry for another 5 minutes. add ground chicken and turmeric, cover and fry for 10 minutes. Add more salt and chilli powder, fry until chicken is dry. Add coriander powder and garam masala, mix well, cook for 2minutes. add curry leaves, cover and turn off heat. serve with rice or roti.