Take a tawa/frying pan and heat oil.
Add the Ginger Garlic paste and fry it on low heat for 1 minute.
Now add the pieces of green chillies and fry it on low heat for around 1 min.
Add the marinated chicken pieces, mix it well and bhunno/fry it on high heat for 3-4 mins.
Now add the Red Chilli Powder and fry it on medium heat for 2 mins till light brown in colour.
Add the chopped tomatoes, mix and cook on medium heat for 2 mins till it is soft.
Now add the Chicken Masala and fry on low heat for 1 min. Add a splash of water.
Cover & cook on low heat for 5 mins. Remove the lid, give a mix and again cover & cook on low heat for another 5 mins.
Remove lid and dry up any excess water.
Now add the chopped coriander leaves, give a mix and keep frying for another minute to coat the chicken well.